4l60e Cracked Flexplate

4l60e Cracked FlexplateI'm swapping a 4L80 into my 1997 K1500 Suburban w/5. Transfer Case Gasket Bolt Pattern. found that the flexplate was cracked all the way around the. LS3 L99 Engine FlexPlate 4L60E 4L70E 6L80E 6L90E. Looks like if the converter face towards engine were flusher it might work. A flywheel doesn't need this amount of flexibility. Make sure to you ptfe or a teflon paste on the flexplate bolts with the blue or red loctite. The squeal you hear when you drive the car is the belt on the engine. 57 @ 109 at 5800' elevation; 11. 1995 Chevy Caprice Performance Transmission. Descriptions of the sound include clanking, chirping and a light knocking. 2004 - 2008 Ford F150 - Cracked Flex Plate - Got a 4. Heavy duty, unweighted flexplate. The adapter is built right in! Spacer and Hardware Included with TCI Kit If you want a new 5. I have heard you can send off a 5. During the torque converter loosened up and wedged against the flywheel did I cause any damage? I couldn't get the bell housing ligned up 100% so I started some bolts on one side, and went to do the other side, and then found as I went to the other side the bell housing was down and not aligned, so I jacked up the back of the trans and got it to align, then threaded in. Under normal driving conditions around 50 mph it started making a very loud knocking noise coming from the bellhousing. Can someone tell me which TCI flexplate will work for my application? Im dealing with a crate ls3 and an ls style 4l60e trans. Rear Main Seal) – External Balance, Dual Bolt Pattern, 168-Tooth. LT1 Based Engine Tech - Flexplate hitting starter help? - I just replaced my flexplate in my car because it was cracked. The cracked bell housing would not be preventing the flywheel from turning as an automatic transmission doesn't work that way. 031 in (much higher than the max spec of 0. 2nd time I knew I had a issue and found the problem. Worn, cracked or broken transmission and/or engine mounts should be replaced. I don't buy that though because my 4l60e equipped suburban towed a 19 foot boat for years towed . The traditional small-block six-bolt bellhousing pattern is the best and easiest way to identify a 4L60E style transmission if you find one at the swap meet for sale. I pulled the transmission of and sure enough, it was cracked. During the torque converter. JW Performance 93019LSD: The Wheel Dished Flexplate LS1. If you find a donor vehicle with both, your job just got a lot easier. TCI SFI-Approved Flexplate Small Block Ford 302, 351C, 351W - External Balance (28 oz. 81″ torque converter) of transmission fluid, Top 30 Common 4L60E Transmission Problems and Repair. I put some oil in 6&7 and the pressure went up to 120. From what I was told on LS1Tech for some reason, unknown to me, GM used a different flexplate for the 6. 700R4 TRANSMISSION FLYWHEEL DUST COVER (PASSENGER CAR ONLY); STEEL- BLACK FINISH. I have an LS1 from an '03 Vette (low miles) and a 4L60e Very common to crack the flexplate around the mounting holes to the crank. The 4L60E transmission is equipped to withstand as well as a handle the max engine torque of 360 lb. turns out the LS1 requires a 4l65e. Come to think of it, it's a good idea to also check the flex plate for cracks. Information about basic repairs for 4L60E can be read here. 8L LS Engine/4L60E Trans In Mike Bees' 1974 Nova. WILL FIT 82-UP GM Chevrolet Chevy 4L60E 4L65E Transmission Parts: 4L60E, SHIFT CORRECTION PACKAGE 4L60E 93-UP (SUPERIOR) GM Chevrolet Chevy 4L60E 4L65E Transmission Parts 4L60E, Reprogramming Kit, 4L60E Racing, Manual Shift Only (Transgo ) (Transplants w/ No Computer, (93-Up) Use T74173E & T74431A) (93-Up) Important Note. I just thought I'd post a short video of what a cracked flexplate on a 6. But it turned out to me to be the flex Plate was cracked all around the bolt holes where it mates to the crank shaft. If your fasteners seem to be in good shape, clean any . 3:yes: so I was going to spend $50 for the flexplate adapter and slap it in. This will also work for newer trucks up to 2006 with a 5. new seal should be about $15-30 and you tube has videos to. Spectre Flex-Plate Bolt & Lock Washer Set Gm 4696: Purchase the best Bolt Kits & Bolt Caps at Advance Auto Parts. 0 is all the same except for having a bigger bore, 80e tranny and ecm tables. 7, 2WD, 1500, 4L60E - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. If the flexplate is cracked, I was thinking a mechanic could replace the plate in like 3 hours. The aluminum block is filled with a sturdy reciprocating assembly that combines with L92-type rectangular-port heads to deliver a 10. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. It could end up being the TC, but the problem you describe sure sounds like the flexplate IMHO. Verify that the flexplate and torque converter fastener patterns and hole sizes match. Its got my attension but im very skeptical as to all the info i have got on these boxes say not a chance of it being true. Push the suspected valve rocker arm with your thumb to quiet the valve. 04 2WD Silverado metallic clanking noises. If the torque converter has been removed: 1. Now I'm installing another 4L60E transmission and once I seat the torque converter I'm noticing a gap of about 1/2" between the flexplate and the torque converter. To put a '95 4L60E into a '94 car: No mechanical mods required. I did the swap on mine last year. About Flexplate 4l60e Specs Torque. It will split till it reaches the edge of the ring gear, or the holes spaced around the plate. If the converter itself is not leaking, have them make sure the pump is centered. fly wheel? A flexplate connects an automatic transmissions torque converter to an engine's cranksha. need to know if i can make this trans work behind my 5. Jump to Latest Follow 1 - 7 of 7 Posts. The flex plate and transmission bell housing should be replaced. It only does it in park and neutral and its random in pattern. 3 (LU3) 1 12637677 Flex Plate (Fly Wheel) 4. i cleaned the crank face, got all the bb's off the flexplate, torqued the flexplate with new bolts and measured the runout at the converter hole area. Torque converter problems have a high impact on your. Most convertor companies send a small tube of red. My truck had a 350 w/ 400gmt 3 speed but I believe the 4l60e's (and 4L80's & 85's) are very similar (electronic versions i think). It's a common complaint on LT1 cars. COVERS: GM 12602448, 12563136, FPG-448 GM FLEX PLATE. 4l60e not going into gear? This is a discussion on 4l60e not going into gear? within the Automatic Transmission forums, part of the Drivetrain category; Ok just did a full ls6 swap in my 2000 Camaro Z28. Torque converter not spinning, reasons?. Thread starter -Use a paint marker on all the torque converter bolts as well as the flex plate to check for any walking themselves out (rear pinion planetary and sun gear cracked in half) and then 2 weeks later my flex plate cracked. 4L60E to T56 conversion instructions for 1994-1997 LT-1 Clean the flywheel and pressure plate surface with brake cleaner to remove residue and finger marks. Just a mild build on a 4l60e all stock everything except jet billet 1-2 and 3-4 servos and cover. Unreal 454-Powered 1966 Chevrolet Chevelle 300 is a Menacing Machine. ARP 2442901 Pro Series Flexplate Bolt Kit for Gen II/LS Series Small Block Chevrolet. Chevrolet Corvettes and Independent Rear Suspension. I tried tightening the bolts with a 6. This is the distance between the engine block mating surface and the converter mount mating surface on the flywheel or flexplate. About Specs 4l60e Flexplate Torque. Gm Truck Bell Housing 6263756 Chevy Gmc 5 Bolt Sbc Bbc Wfork 305 350 400 454. (28) Get Results Brand Year Make/Engine Transmission Model Ring Gear Tooth Quantity Flexplate Diameter Rear Main Seal Style. High quality information and 4L60E transmission parts from Global Transmission Parts. When diagnosing driveline problems, one of the bigger challenges can be diagnosing a bad torque converter versus a bad transmission. --Bent crankshaft at the rear flange. That's a significant amount of money for this old truck. The Transgo 4L60E-HD2 is meant for crisp muscle car or full race shift performance. I started the motor and lookes for warpage in the flywheel, it looked fine. The 4L60E has three accumulators; one for the 1-2 shift, one for the 3-4 shift, and one for Forward-Reverse. : Transmissions & Parts - Amazon. Installation of a torque converter is a simple,. 55" inches from rear cover lip, compared to the. Other that that it is as described - based on other peoples experiences, I think I was lucky. BLACK Steel Flexplate and Flywheel Dust Cover; GM 700R4 Transmissions With 4 Bolt Passenger Car case (Only). The 700R4's 3-4 clutch pack is the weakest link in the whole transmission. For example, on a stock starter, regardless of whether it is for the big (168 teeth) or small (153 teeth) flywheel, if you have to replace the starter drive, the guy at the parts store (NAPA, etc) will give you the same starter drive for either starter. C6 was stouter, but same gearing. 3L style plate you will want to order P/N 57534610 and the adapter sleeve, P/N 57518346. More would be better, but that is what is necessary. Flex plate: You will need a flexplate and spacer from ¾ ton GM truck that originally came with a 4L80E. Buy FI GM Chevrolet Heavy Duty 168T, ONE PCS Billet flexplate. Needless to say, the trans needed to be pulled and a new converter put back in. I'll have to guess cracked flexplate. Failure of this part is messy and dangerous, so replacing it with a thicker, tougher single-piece flexplate is essential. Not sure about the history of your vehicle, but something has changed recently, most-likely a transmission change. Loose flexplate/converter bolts make a nasty sound similar to a rod knock, but immediately go away as soon as you try to accelerate the mass. 13" inches from the standard length crankshaft. It was used in many GMC and Chevy vehicles, starting with the 1982 model year. The General Motors 4l60e automatic transmission is a very common transmission used in light and medium duty trucks, passenger cars and sports cars. TCI's Super-Pro kit for the electronic version of the 700R4, the 4L60E (PN-378900) offers performance enthusiasts firmer shifts and improved internals. Flywheel / flex-plate bolts 75-85 ft-lbs. The number 4 in the title indicates that the transmission is a 4 speed transmission. SKU: TRQ2500-1 Category: Transmission Components. Tough enough to handle severe applications. BTE's new bolt on bell housing improves the strength and safety of powerglide transmissions built with the factory case. Will fit years from 1998 - 2006. I looked at the flexplate, and it is wobbling. The flexplate also has gear teeth on it which the starter engages to start the engine. At over 1000 rpm, the noise gets slightly faster and goes away. Reason why, there is a special year ('99-'00) 6. Yes I've seen one of the flat flexplates on the early "iron head" lq4 and the crank difference is an issue if you want to stuff that engine in front of a 4L60 or 4L65. Apply a light film of TransGel or Vaseline to the pilot bore of the crankshaft. of the bore should be measured during every R & R. Being as new as your engine is, I believe there were only 2 flexplate available for that. Oreilly website part # 14052, 14557, 74070 or 678-154. While driving it home that night, everything was running fine until about 5 mins from home the transmission started to slip but finally made it back. Shaft and flywheel tapers must be clean and dry and you must use a torque wrench to tighten nut to 40-45 foot pounds. Hey has anybody cracked a flexplate yet. no excessive crank thrust play,. Here, you will get a brief idea of what a torque converter is and some of the most common ways to tell if yours is going bad. Part # BPP12654640 Description BluePrint Flexplates Features and Benefits: Ring Gear Tooth Quantity: 168 Rear Main Seal Style: 1-piece (LS engine only) Engine Balance: OEM LS 1-Piece Flexplate Material: Steel Quantity: Sold Individually Note:11. Replace the cracked or leaking transmission lines in your 2001-2005 GM 6. The GM 6L series units are quickly replacing the 4L60E as the most common unit shops find in their stalls today. Chevrolet Silverado 1995-1997 Rebuilt Transmission 4L60E. dropped trans, found that the flexplate was cracked all the way around the bolts. Recently purchased a 1998 Chevrolet K1500. The flexibility of the flexplate enables it to adjust to slight misalignments between the engine and the transmission without causing it to crack or otherwise damage the parts involved. 70psi in #'s 6&8 tell me either a bad head gasket or cracked head. The crank cut to fit Big Block Chevy rods, shot peened, magna-fluxed, stress relieved. Only problems noted were a cracked flexplate and front shocks. Help With My 1999 Suburban. Find our best fitting flywheel and flex plate bolts for your vehicle and enjoy free next day delivery or same day pickup at a store near you! 20% off orders over $120* + Free Ground Shipping** Online Ship-To-Home Items Only. For what it's worth, if you had a broken or cracked flexplate- it would be making A LOT of noise. Have you wondered the difference between a flexplate vs. My trans has the smaller style input shaft. Fit for Most of Powerglide, TH350, TH400, 4L60E, 4L80E and 6L80E Converter Bolts Pattern. This Flexplate works on all 98 up LS based engines with the exception of the LQ4 6. Take measurement "A" shown in Figure 1. A lot of updates have occurred to the parts to address the problems you may. Harmonic damper bolt 70-90 ft-lbs. LS Flexplates for TH350, TH400, or 700R4. com you will find best deals from worldwide suppliers of New, Aftermarket parts for 4L60E and other automatic transmissions. The torque converter on a General Motors 4L60E automatic transmission is an essential link between the engine and driveline. C4, C6, AOD, E4OD, 700R4, 4L60E, 4L80E, then finally 4R70W. When I compare the old and new starters, it appears that the previous owner ground. The flex plate is a key component of your car's powertrain, which includes the engine, the transmission, and the other re. Chevy 02 D/A - LT, Regular Juice - daily drive at level 4 - Tow in level 2, CAT fuel filter -Post OEM, fiberglass air deflector for transmission cooler, Autometer EGT, ODLO switch, 4" Flow through muffler with 4" resonator using 3. Eliminate the weak link of the factory flex plate in your 2011-2016 GM 6. 0L EcoBoost - Rattle Noise And Cracked Flexplate 19-2236 06 August 2019 Model: Ford 2015-2018 Edge Issue: Some 2015-2018 Edge vehicles equipped with a 2. In theory just 4 bolts, 3 connectors to remove. How Flexplate Chevy Install A A On To 350. Tackling Clutch Failure in the GM 6L80/90. The global torque converter market continues to grow and expand at a CAGR of 4. Almost new (purchased in October 2021 from America's Tire). It should go low sevens with the power it makes. As misalignment increases, the flexplate flexes more. Key points for 4l60E removal/installation on 4. This is due in part to the technological advances in torque converters. If the noise stops or changes significantly, you've found the problem valve. 3 2WD which just got a rebuilt 4L60e. It takes the place of the flywheel found in a conventional manual transmission setup. This may be more noticeable at idle. All I can find is the number for the 5. The LS3 crankshaft has the standard six-bolt pattern for the flywheel. The torque converter never locked up. GM Chevy LS Series Engine 6-bolt Crankshaft SFI Flexplate with 11. One of the most common issues with the 4L60E is a broken pump rotor due to improper torque converter installation. Too far back will affect spark strength. Joined May 25, 2008 · 4 Posts. The torque converter housing is mechanically attached to the engine's crankshaft causing the pump to operate whenever the engine is running. This continual flexing eventually causes the metal to fatigue and the flexplate cracks. The 4L60e weighs 133 pounds without transmission fluid, and the TH400 tips the scales at 134 pounds. I bought this '05 Yukon XL a couple of months ago - 5. Despite its name, the 4L80E is not an upgrade to its GM counterparts. In fact, have it towed back to them if you can. 2005 GMC Sierra TSBs 330 Sierra Technical Service Bulletins. After putting everything back . 700, BAND 2ND/4TH HIGH ENERGY 4L60E 92-UP BORG WARNER DARK GREEN LINING. 1 SFI approval stamped into the face of the plate. TCC solenoid wiring harness for the GM 4L60E, 1993-2002 Transtar Part Number: A74425NC. Flexplate, 168-Tooth, Internal Engine Balance, 1-Piece Rear Main Seal, SFI 29. More About 4l60e transmission fluid coming out of dipstick tubeHere is the info I have Enable an extra 1-3 qts for the cooler and lines. The 4L60E has HD2 shift kit, Vette Servo,Trango MOD-46 vacuum pressure kit and new seals since it was rebuilt only a few thousand miles ago. This adapter assembly brings the Jeep / Mopar 4. Introduced in 1993 for trucks, vans, and SUVs, then in 1994 for rear-wheel-drive passenger cars, the 4L60E from General Motors is an evolution of the Turbo-Hydramatic 700R4 and replaced the tried and true TH350. All three must be compatible and from the same application. The 4L60E has a weight of 150 lbs without fluid and a length of 23. The only way to fix this is to remove the trans and torque so you can unbolt it from the crank. Parts Information Part Number Description QTY 24206953 Bell Housing 1 12555640 Flex Plate (Fly Wheel) 4. definitly use locktight on the converter bolts. If not properly diagnosed it will occur again and often damage to the transmission may follow. HI YOU MAY HAVE A BAD IGNITION SWITCH OR YEST A BAD SHIFT SOLENOID 3-4 Read full answer. C4 Tech/Performance - Does this sound like a cracked flex plate to you? - Long story short its a LS swap into a C4 corvette with a 4l60E, . If so, where does this spacer go? Is it between the flexplate and the crank? If I need it, where can I buy it? My LQ9 is out of a 2004 Caddy Escalade complete with flexplate. I replaced the CPS and everything else was good before I did this. How To: Remove and Install A Chevy Flex Plate! Rich Hjalmar. A new filter is included, as well as a bushing kit and thrust washer kit. We have carefully engineered a process that allows a 4L60E rebuild to maximize performance and durability while staying within a wholesale price range. Search: How To Install A Flexplate On A Chevy 350. We carry the most dependable automatic transmission dust covers and inspection cover plates that look attractive while keeping your flexplate or flywheel free from dust and other harmful particles. Introduced alongside the original 4L60 in the early 1990's the 4L80E was designed for large trucks and is designed as a heavy duty unit, rather than a transmission for smaller cars or even some pickups. Technically, the 3-2 downshift solenoid should be swapped also, but experience shows that it is not required. So, that's $180 in labor for my guy, plus a new plate. Ive had a lil ticking nose for a while now and yesterday I decided to check the 14mm bolts on the plate to flex and notice one was simi lose . This kit will include everything else you need to rebuild your 4L60E transmission. A properly working torque converter is something your car's transmission needs to function. All of the 1998-up cases used behind the LS family of engines used the separate bellhousing style of case. trans case broke at the servo housing (4CJD). 4L60E to 4L80E conversion flexplate. 700R4 lock up solenoid 700R4 4L60 transmission solenoids. 3 for $500 and droped it in, after finding a 3/4 ton 2500 6. B&M AUTOMATIC TRANSMISSIONS REPLACING GM 4L60E and 4L80E. Everything looks fine as far as I can see. GM's LS oil leakers / burners or "The 2. 062 (281mm) torque converter bolt pattern. Ring gear tooth count: 153 or 168. Same result with min and max on the same spots on the flex-plate. I've had it happen more than once. Flexplate wasn't my issue, I was hoping to not be stupid enough to put that cause a converter to not spin freely once cracked like that?. I am sticking with the original trans in the Tahoe 4L60E. Joined May 1, 2012 Messages 2,809 Location. Starting in 1996, many 4L60E transmissions employed a bolt-on bellhousing. With the model names so similar, you might think that these two automatic transmissions are similar, but they are quite different. The 700r4 and the 4L60 transmission uses a bolt pattern of 16 bolts, so if the transmission. It would be safe to drive it home or to a repair shop, but I would have it replaced ASAP. Was a GM reman transmission that was installed for a very short amount of time before vehicle was wrecked. Before you do that you have to remove the starter and unbolt the torque converter bolts. The first cracked FP for me I ignorantly assumed the missing torque converter bolt was the problem so I missed the bellhousing problem. torque to the torque converter, so I would think that a cracked flexplate . 2005 Savana eats flexplates. the converter bulge does not allow it to get the hole mounts flush with flexplate as seen on the Third Picture. Within a week of each other, two different vehicles came into my shop with cracked flex plates. Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM engine Securely welded ring gear with dual bolt pattern for use with either Powerglide or Turbo-Hydromatic transmission Meets SFI specification 29. Torque on the 3/8" bolts is 35 ft/lb. If the engine flex plate is found to be cracked. 4L60E to T56 conversion instructions for 1994. Here are some pics of my built Lt1 4l60e, Yank 3600 SS converter on a new LS3 in my 96 SS, all I used was a $25 torque converter spacer, and a LS curved flexplate. Before I bolted the T350 up, I poured in 1 qt. I have the new T350 bolted up to the engine & torque conv. I once had a cracked torque converter which sounded similar to the video you've posted. of the spacer is the root cause of most of the cracked flex plates frequently found in these units. I have the tools & ability to measure that precise. Jeff's 2000 WS6 4L80 monster getting ready for lift off as the bulbs light up. 1-2 accumulator piston cracked or stuck cocked in the bore. 1 for a 4l60e, and the other for a 4l80e. Since then i've broken 5 flex plates. If the flexplate shows any damage it should be replaced. 1 Flex Plate Shield and Specifications 4. If the engine isn't running, there's nothing there. When in neutral, park, or slowing to a stop, the torque converter isolates the engine rotation from the transmission. Transmission pumps are driven directly from the engine through the torque converter. I talked to a few transmission shops and they said It will probably be fine, but I would. Damaged flex plates are common o Compare bolt pattern on flex plate to bolt pattern on new torque converter o Inspect crankshaft pilot bore for wear and apply grease to aid with installation o Compare replacement transmission and torque converter to original before installation o. The 4l60e in my 94 is leaking from the flywheel cover. You risk burning up the clutches running it on low fluid. 4L60E 4L65E 2004 on / front pump rebuild / leak kit. I had a 86 k20 t400 350 gasser] company truck that would break the center out of the flexplate every 5000 miles. The turbine is splined to the input shaft of the tranny. I dropped the 4L80e today to replace the front seal. This is how to carry it out: Turn the ignition key and start up the engine. Drove it for awhile, then got rid of it and the car. Can I swap the flexplate on my Suburban w/o pulling the tranny all the way out? 5. Because the flex plate is an integral part of your car’s powertrain, and replacing it involves removing the transmission, a significant amount of labor will be involved. 8 but will require a different flex plate to work. Once this sucker is in you won't break it or worry about it. By the time I got it replaced, the pump in the 700 had gone out from the vibration. In this video I talk about a noise coming between the engine and transmission. Transgo hd2 kit with the "street strip" selection for the separator plate holes and accumulator springs. As a result, it became evident that this popular and often problematic transmission needed it's own installment in our educational Drivetrain 101 section. 140″ thick Chrysler and Ford flexplates with GM and Ford bolt patterns are available for use with adapter plate kits. A tick/clanking coming from around the torque converter/ inspection plate cover area only at IDLE. Although both transmissions were quite similar, it was the first time when GM shifted from a hydraulically-controlled transmission to an electronically-controlled one. As the executive choice in high quality and proprietary 68RFE transmissions, rebuild kits and parts, we're often pelted with questions about it's numerous problems and how to prevent them. Shudder/vibration after transmission rebuild. About a week ago I started hearing a ticking sound and assumed it was a lifter ticking so I've used cleaners and such to try to eliminate the sound. C4 would be an easy swap, but lacked the spectrum of gearing I wanted. Flex plates normal break,or crack when the torque converter bolts or the flexplate crank bolts are a little loose,and there's play while there's . Measure Dimension B: On the engine, measure the distance between the engine block mating surface and the torque converter mating pads (the raised surfaces on the flexplate at each torque converter fastener hole). 1982 Sierra Classic K10 RC/LB 6. Its almost like a buzzing/grinding sound. To put a '95 4L60E into a '96 car: The '96 tailshaft housing and VSS must be installed on the '94 4L60E before the trans can be bolted into the car. Just slightly oblonging the holes in the flexplate for the Lt1 torque converter to bolt up. The flywheel/flexplate on early A4LD/4R44E 4. This new flexplate would be used when taking the 4L60E out and replacing it with the 4L80E. I don't think a beefier flex plate will solve why it's breaking. 0L LS that had a "long" crankshaft. When it develops a crack, it cannot function as intended and one consequence involves a loss of power at high speeds. In addition; new filter, band, low roller clutch, forward sprag, needed bushings or all bushings, torringington bearings, rebuild the oil pump, upgrade to servo, and a few other items. Also look for any cracks, metal transfer, or abnormal ring gear wear which may suggest other problems. 4l60e Strange noises while in park?. Install the first bolt finger tight then use the starter motor to "bump" each drive lug into position. GM Drivetrain & Suspension - 4L60E Cracked Flexplate - I developed light ticking sound a couple thousand miles after building my 4L65E. 2wd 4L60E Chevrolet transmission. This heavy duty transmission is a direct replacement for Buick, Cadillac, Chevy, GMC, Holden, Isuzu, and Pontiac. 0/4l60e from one of my buddies from an 02 Denali. It's a proven strong and dependable transmission and it's also what came as the original automatic transmission backing up a good majority of LS engines out there. Discussion Starter · #1 · Oct 7. The classic and most obvious symptom of a cracked flexplate involves the sound it makes while the engine is running. If your pump has become off-center, the snout on the converter won't seal against the front pump seal. It wouldn't surprise me in the least bit if the flexplate has broken. I just came accross a mob on e bay in victoria building 4l60e boxes that they say can handel 1000 hp. The piston in the Forward-Reverse accumulator is usually plastic and may crack in the center where the pin rides. 7 Clutch 3/4 Stack-Up with Raybestos GPZ High Energy 3/4 Frictions / Full Thickness Kolene Steels. TCI Auto 399860 - TCI Forged Flexplates. Can anybody tell me what is cracking my flexplates???. I've seen more than one cracked flexplate on these trucks. The correct method of measuring "A" is shown in Figure 2. I have a 2005 Silverado with a rebuilt L33 (B VIN) 5. I "think" its right where the flexplate bolts to the motor. Jun 25, 2009 • 1995 Chevrolet S-10 CA Edition. Replacing the original torque converter with an upgrade / performance unit may require enlargement of the fastener holes on the flexplate. Buy JW Performance 93019LSD at JEGS: JW Performance The Wheel Dished Flexplate LS1-LS7 (P/G, TH350/400/700-R4, 4L60E/70E/80E). Turns out the flexplate was cracked all . 13) Install the battery and reconnect the battery cable(s). They are cracking around the bolt holes. If you run coilovers on a LS what kind and how low can you go? on 20's. 4L60E One Piece Case Identification: 93-97. 3L flex, 4L60E, Auto-trak transfer case, etc. 50s at 190 mph in the 1/4-mile and 4. What Causes A Flexplate To Crack. It bolts to the end of the crankshaft and attaches to the torque converter. Hello all, Well the T350 install continued this weekend. There's A Weird Buzzing Sound Coming From The 4. Flexplate (or flex plate) is a metal disk that connects the output from an engine to the input of a torque converter in a car equipped with an automatic transmission. Re: Differences between -86 and 87-95 small blocks. Yes, you can lock the flex plate from turning with a flat bar/flat blade screwdriver (not a good one)/tyre lever in a ring gear tooth and held against the block. For sale is my beautiful 2002 white lexus ls430-clean title-smog is done-116k original miles-timing belt and water pump service done at 90k miles-fully loaded with GPS navigation, heated seats, and telescoping steering wheel-Clean Carfax available upon request-brand new tires all the way around. Raise vehicle and place securely on jack stands so that there is at least 19" of clearance at the side to enable removal of the transmission from beneath the vehicle. 0L EcoBoost engine may exhibit a rattle. It was logging a P0894, which is a transmission slip code (the replacement for P1870). It should "clunk" twice as it seats back in the trans. borderboy1971 , Apr 18, 2020 SHARE POST #16. I dismounted the plate and rotated it 180 degrees. I ended up replacing it with a 1997 4l60e (7MSD) that was originally mated to a 4. This is an older thread, you may not receive a response, and could be reviving an old thread. Regarding the tooth spacing on the flywheel/flexplate/starte r drive, they're all the same. When I got the engine, the nose cone was broken on the starter. I have the right torque converter for my trans, and also the right fly wheel, this I have verified. PDF Condition/Concern Recommendation/Instructions Parts. A buzzing could also come from a bad internal sealing surface, a seal, or low transmission fluid due to a leak. The 4l80e used a 6 bolt converter, but only a 8 lug truck with a 6. I took it to a trusted shop and they found that the flexplate was cracked. The original flexplate totally seperated leaving the small section bolted to the crankshaft and the larger section with ring gear bolted to the torque converter. Finally got it off with some cursing and a nice set of pry bars. 3L w/ 4L60E/4L80E Transmission, Drive By Wire $ 650. K77929U 2004R 700R4 4L60E TCC sol (use 35391A) Lockup Solenoid for GM 700R4 4L60E & 2004R. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps: Flexplate question. 187″) If it is more than 3/16″, you should use flat ground washers to shim between the flexplate and converter. INSTALLATION GUIDE Inspect flex plate for cracks or any damage. The 4L60 is the latter model 700R4 transmission, only the name changed, if you think you may have a 700R4 look here to identify it. Estimated Ship Date: Apr 22, 2022 (if ordered today) Free Shipping. ( 1 ) Estimated Ship Date: Apr 22, 2022 (if ordered today) Free Shipping. I cant quite narrow it down, it seems like its coming from the transmission but it echos off everything underneath the truck so that's my best guess. 6 Piece Transmission Master Solenoid Kit Fits for GM Products with the 4L60E Model Automatic Transmission A direct and great replacement for the old and. Monster Transmission provides transmission parts for all transmission year, make, and models. First, lets go over the components of reverse. Replacing flywheel/flexplate. If you have a 4L60E and someone gave you a '98 or '00 there could be a problem as the '99 is supposed to be '99 only. Buy in monthly payments with Affirm on orders over $50. The following procedure should be followed to completely and correctly install the torque converter. In most automatic transmissions, the torque converter is mated to the pump of the transmission in two places: the input shaft and the stator (also called a . With a Gm flexplate, it usually lasts about 500 miles, with an autozone flexplate, i'm lucky if it gets 75 miles before cracking. You could also have a stock flexplate redrilled for the 4 x 10. ISUZU HOMBRE 97 AT, (flywheel), 4. We have all the hardware and specific information you're looking for on your GM 4L60E transmission. The torque converter uses fan blades in a sealed case to create a fluid coupling that transfers power from the engine to the transmission. Description 4L60E to 4L80E conversion flexplate. I was told it was a 2001 4l60e from a 2wd Silverado. The flexplate in an automatic is the same part as a flywheel in a manual. Then whom ever replaced the FP before me didn't catch the peened bellhousing and tightened it down causing a alignment problem. Older style blocks ('55-'85) used a two-piece seal, '86 and up blocks used a one-piece seal. Worn, cracked or broken transmission and/or engine mounts should be re-placed. The 4L60E transmission by General Motors first came onto the scene in 1992 where it served as a replacement or upgrade to the 700R4 transmission. * Four speed 4L60E automatic transmission * Bosch System 5 Four Wheel Anti-lock Disc Brakes * 3. Tape or retain all wire harnesses, hoses, fuel lines, and cables out of the way of the transmission tunnel to avoid damage. 54%, which is projected until 2021. I have 2 trucks with the 4L80E and I'm aware of its inspection cover size. fluid into the converter and installed it on the T350 input shaft as far in as. Discussion Starter · #4 · Nov 10, 2009. Thread: loud knocking noise. the pump seal has worn out and possibly cracked letting fluid leak past it into the bell housing and causing it to leak from the front. This flexplate can only be used with a 4L80E transmission. AND it might explain why the noise went away briefly when you checked the torque on the converter bolts. 2009 CTS-V A6 Sedan Black, 20" F14's, Eibach's, Lingenfelter 650hp kit, ID850, HTC Coated ARH 1. Messages: 23,514 Likes Received: 1,875. When no standard name is known, the application is noted. 75-inches, is a little longer than the short tail TH400 at 28. Start and warm the engine (primarily, the exhaust system). Order your flexplate and flywheels covers today. I had the converter bolts come loose on my 91. Purchase premium flexplate and flywheel covers at JEGS High Performance. This is a strong shift kit that will deliver impressive performance. The flexplate is made from a sheet of fairly thin stamped steel whereas the flywheel is heavier and solid. 0 Starter grinding on flexplate. Flexplate, 168-tooth, Steel, Internal Engine Balance, SFI 29. Also many 4l60e master kits contain a new 3-4 piston. this year requires a spacer, I'm told. Making to much power for it lol. 1953 Studebaker M275, Reo-331 I6. new product information, grade brake feature of allison 1000 series transmission. About then (really when LSx engine started to pop up) they went to a 300mm torque converter, instead of the 298mm. I've read the threads, but can't find the part number I'm looking for. Looks like the 4L60e converter will not bolt up to the 6.