However some 2wd vans and HD truck versions had a, J Series Trucks & Wagons, (I6 These tight gear ratios not only allow for lightning fast upshifts and downshifts. Your email address will not be published. How quickly time passes by. The transmission will bolt up but will not work since the TCM, Tehcm and BCM are application specific and cannot interchanged. Bolt and gasket inlcuded. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Repeat Steps 3 through 9 six (6) additional times. Why the Sonnax forged covers and pistons solve the problem. check the starter bendix and see if its loose and bouncing off the flywheel. Engine torque rating increases minimally, but the output torque rating of the transmission jumps up by nearly 220 ft. lbs. The 6L50, 6L80, 6L90, 8L45, 8L90, 10L60, 10L80, & 10L90 transmissions from MY2015 to current are filled through a port in the bottom of the oil pan. Now, the high-speed CAN network allows a high rate of data sharing between the units to achieve a collaboration between both engine and transmission functions. Our simulations reveal that this is worth anywhere from 0.10 to perhaps 0.15-second in a quarter-mile comparison between a stock 4L80E and a TCI Six-Speed. GM 10L80: A new kind of pump noise. By Wayne Colonna. The TMBX and the JMBX have similar covers and use the same woven carbon friction material, yet the JMBX fails catastrophically at a very high rate and the TMBX cover rarely fails. So if there are any possible ways to upgrade the RPM Level 6 4L70E in my 416 CI Trailblazer, the 4L80E in my Silverado with a LS2 with heavily worked and milled 243s, Ported and polished Fast LSXRT 102mm intake, and the Caprice PPV I am looking for the right one. See the pictures below to help you tell if you have the right transmission. A used 10L80 is pulled from a wrecked vehicle, so theres no telling what may be wrong with it, or how long it will last. This is a completely new and different transmission compared to the 4L80E. The 8L90 and 6L80 have the same size output shaft and mounting pattern. You might run into a lack of valve body repair options. Looking for parts number : new shaft, copling et seal and where to find them. This seems to indicate that there will be other 10L80 transmissions that will be experiencing this same new kind of pump noise condition. For now, the bulk of reported cases are related to diesel vehicles. The 6L80 Hydra-Matic transmission is a 6 speed automatic transmission manufactured by General Motors. If you have your heart set on a six-speed automatic to back your LS, consider TCI's 6X transmission. Reproduction in whole or in part without permission is prohibited. Inspect the warmer for damage and related lines for leaks (Figure 4). This is a completely new and different transmission compared to the 4L80E. 3) 6L80E with fixed output flange is about 2 1/2" shorter than 4L60E and about 3 1/2" shorter than 200-4R. It can also be found in the Lincoln Navigator. The 6L80 is a robust transmission and can handle a ton of power. Copyright 2006-2020 GEARS Magazine. Made of billet aluminum with included swivel -6 AN fittings with 3/8" barbs. When cutting the JMBX open, converter rebuilders report that a high percentage of units show extreme damage due to the clutch piston and front cover crashing into each other (Figure 1). Finally I am looking for a Chevrolet Caprice PPV to build into a fun road trip sedan for the family with either a LS3 or L92 engine block, stock LSA crank, rods, pistons, ARP hardware through out with CNC LS3/L92 heads and a pair of turbos with a goal of 750-950 horsepower at the wheels. I'd be modding it to a FBO car with cam and converter eventually. However, at light pedal or road load, single-step upshifts will occur. Every modern GM vehicle has one of these sheets in its glove compartment. These concerns may be caused by a sticking TCC Regulator Valve (Figure 5). Drive the vehicle until the engine and transmission reach normal operating temperature. If you are tearing down a new job and cant find any hard part failure that would result in the amount of metal you have in the pan, its just about certain that the inside of the torque converter looks like the disaster area shown in Figure 1. The 1-piece aluminum case houses a slim 260mm 10L80 torque converter inside the integrated bell housing. CDT 10L80 Bench Rebuild. The check engine light might be on, and the customer complains of a slipping sensation with intermittent clunks. Before answering that question, its worth noting the role that Sonnax plays in the converter rebuilding business. The taper may exist so that the clutch surface goes flat when the cover is welded together were not sure. By combining a wide 7.39 overall gear ratio spread, with smaller steps between each gear, this GM 10-speed automatic transmission is able to keep the engine in its ideal power band during acceleration. GM 6L80 and 6L90 units are now starting to reach their prime age in the repair cycle, and techs across the country are starting to see a consistent pattern of transmission failures with full-size 6L80, 6L90 vehicles. The 6L80 features a generously deep first gear for an automatic, making for favorably powerful starts from a standing stop. The 6L80 has surprised us power transmission aficionados with its wholesale adoption of new and very different technologies. NonStop-Transmission. The General Motors Hydra-Matic 10-speed 10L80 automatic transmissions is a heavy duty (high performance) variant of the Hydra-Matic 10LXX transmission family. My problem with the 4L80E is it was always a workhorse and in the past 25-30 years trucks have gotten much quicker and versatile. You also asked about GMs new 6L80E. or gross weight of 14,000 lbs. Our transmission shop specializes in rear wheel drive Ford & GM high performance transmissions. Fluid pressure is maintained by an off-axis main pump that can vary the displacement depending on the load. Interestingly enough, it was not long after this that Brian received another 10L80 with the same issue to resolve. So my suggestion is to not subject the lockup to that amount of abuse. Seems like the 6 speed auto would be better for the torque curve. From the workshop on ongoing projects and more, and where the new images are added afterwards. Its the a10 (10L80) from the Silverado. Members
Related Articles Diagnosing Chrysler transmission max line pressure and P0933, P0869, P1745 codes How to service the Honda 10-speed transmission Solving, This article applies to Chrysler RFE, RLE and TES transmissions that utilize pressure control solenoids (PCS) for line pressure control. Exceptional torque rating. Where the original 4L80E First gear is 2.48:1, TCI created a 2.97:1 First gear ratio. A remanufactured 10L80 on the other hand, is completely remanufactured, and its designed to exceed the manufacturers original specifications. A rebuilt 10L80 will only have a certain number of components that get replaced. This transmission is out of a Tur. The 10L80 was a joint engineering effort between GM and Ford. This is the abridged version of my problem. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Upon full inspection, the unit is loaded with metal, and the pump (bell housing) is worn to the point of needing remachining or replacement. 10R80 transmission swap? Mine did it on flat ground only it downshifted four or more gears with a loud bang then jumped back up to tenth with the same bang. To be honest, we arent 100% sure of the real reason for JMBX cover and piston failure, but we do have a theory. Finished in a durable and corrosion-resistant clear anodize. I am currently planning on a high compression LS2 and a progressive nitrous kit but before another 4L80E goes in there is a 6,8, or 10 speed not an option? Tenth 0.64 What is your recomendation for towing? Applications. $ 439.00 Select options. 2018 YUKON DENALI 64K ON THE MILES HAS A CLICKING NOISE AT A IDLE LIKE A CRACKED FLYWHEEL OR SOMETHING BOUNCING IN THE PAN CHEVY PUT NEW EXHAUST ON IT THINKING IT WAS IN THE CONVERTER ALSO PUT A NEW PUMP IN THE TRANS THIS SOUND IS NOT THE SAME EVERY TIME SOUNDS LIKE A BOUNCING BOLT SINCE THE PUMP WAS IN STALLED NOW SEEMS TO OLY MAKE NOISE WHEN WARMED UP MY SON IS A TRANSMISSION MAN HE SAYS IT A SOUND THEY MAKE WHEN THEY ARE SUCKING AIR NOT SURE ON THAT I WAS A MECHANIC FOR MANY MANY YEARS CANT FIGURE THIS OUT NOR CAN GM ANY THOUGHTS ON THIS ? this means that dimension "C" is usually longer than dimension "B". This drives up the price of the rebuilt converter, but ensures that this kind of failure wont happen again. Hi Jeff, None of the above categories describe me. In a similar vein, GM Gen. IV engines do not always take kindly to other transmissions such as manuals (essentially no longer available from GM), and most automatics that predate the 6L80. 3-Bolt Adapter Flange Yoke Kit. The dealership was able to provide this part rather quickly. Its extremely important to scan all modules for codes and address those codes first! Did the converter clutch material just wear out, thus allowing the clutch and cover to go metal-on-metal? Now he serves as a regular contributor to OnAllCylinders. Brake pedal position: Directly affects shift scheduling and TCC scheduling, Air/fuel management adaptive values reset. Just keep scanning it until you find the one you are looking for. : 18-NA-355 Special Tools DT-52263 Transmission Fluid Exchange Kit: DT-52263-1 Block Assembly (includes fluid drain Larry Callahan Founder/Administrator of Pro-Touring.com, G-Machines.com and HostMyJunk.com To advertise on Pro-Touring.com click here The 6L80 would have big shoes to fill, with legendary predecessors like the TH400, 4L80E and 4L60E transmissions. vehicle weights. The 10R80 doesn't have a traditional "front" pump. You are browsing camaro6. Wait 3-5 minutes before driving. Chevrolet Transmission Dimensions Dimension "C" is the distance from the bellhousing to the center of the transmission mounting pad. The Ford version is built at their Livonia transmission plant (Ford spent a reported $1.4 billion on retooling to build this transmission), and the GM version is built only a few miles away at their transmission factory in Romulus Michigan (GM spent a comparatively cheap $323 million retooling this factory). The 6L80Es gear rations are as follows: There are two super easy ways to tell whether or not the transmission is a 6L80E. Once there is any metal-to-metal on the TCC surface at all, its usually a short time before debris wipes out the clutch completely. Cadillac CT5 2021 MHS Automatic 10L80 Transmission 10-Speed 24294949 AWD 2427812. Recommended fluid is Dexron VI and it typically accepts a 10 quart thru 12.6 quart fill depending on its application. During the inspection of the transmission, Brain noticed that the idler gear could be easily lifted off of the bearing with just the use of his fingers (see figures 2 and 3). I believe AFM has been replaced with DFM Not for fact nojust was basing on the truck. Then, of course, Sixth gear is still 0.75:1 overdrive. Now controlled by computers, the E series transmission allowed for a wide range of tuning options. When diagnosing this unit, it is very important to realize that the failure management programs built into the powertrain system may be a direct reflection of the customers drivability complaint. Thanks to the optimal gear spacing, the engine RPM only drops approximately 20% when the 10L80 changes gear. Then it can upshift to one of its three overdrive gears for maximum fuel economy. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Cost and Process, Torque Converter Problems: Symptoms & Replacement Cost, Transmission Solenoid: Symptoms & Replacement Cost, 10 Pro Tips on Buying Used Transmissions For Sale, P0700: Transmission Control System Malfunction (TCM), Pontiac Firebird Transmission Problems & Cost | 4L60E / 4L65, Cadillac SRX Transmission Problems & Cost | 5L40E | 6L50 | 6T70, Ford Crown Victoria Transmission Problems & Cost | 4R75E / 4R75W / 4R70W, Chevy Equinox Transmission Problems & Cost | 6T70 / 6T45 / AW55-50SN, Saturn Aura Transmission Problems & Cost | 6T70 | 6T40 | 4T45E. A sectioned image of the 4L60-E TMBX and 6L80, 6L90 JMBX (Figure 3) shows the external profiles of the respective front covers are very similar. - Scope testing the Ford 10R80. But I was su unhappy with it I sold a bunch of parts and began changing the built. The Nightmare on Oak Street: A hunt for 4L30E electrical problems How. Thx How is this different from the GM 6L80E transmission that is used in the Corvette or in the newer GM trucks? Automatic Options - 4L60 and 4L60E. Honda CR-V Hybrid Racer Is an 800-HP Test Bed. Team ATF builder Super Dave doing his magic on assembling the First 10L80 transmission ATFSpeed has had come thru the shop. As such, Sonnax has a good view of both sides of the pump, so we are intimately involved with engineering solutions to both trending transmission AND converter issues. See how the ratios have swapped places? I am making a great deal of changes to the truck from a Procharged 5.3 to a head, cam, Fast LSXRT intake LS2 on nitrous before we build a 3.9 bore and stroke twin turbo 372ci setup. (bellhousing pattern - Chevrolet, Fit-all), (bellhousing pattern - Chevrolet, BOP, Fit-all), (bellhousing pattern - Chevrolet/removable), 1991-Later (bellhousing pattern - Chevrolet), (see also capacity of fluid in the converter. To handle the increased output torque capacity, the 6L90 departed from the long-standing GM 32 spline specification output shaft of the 6L80 and went to larger diameter 29 spline for most truck applications. The following drivability conditions will be present when this type of DTC is stored. Required fields are marked *. That way you get a longer service life, along with a 3-year/Unlimited Mile Nationwide Warranty.. The 4L80 features a 310 mm torque converter. Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. Essentially what TCI did was to engage the overdrive at the back of the trans to split the gear spread between the original First and Second gear ratios and again between Second and Third. Please help>> I have a 2013 GMC yukon. Trying to decide if its worth upgrading for the 10L80 alone. Click Here to Email our Sales & Tech Staff 888-748-4655 Local: 330-965-7146 International: 001-330-652-5855 Mon-Fri 8am-5pm EST Sat-Sun: Closed Its good for a 12.69 @ 111 mph in cool dry weather.I go down the track with the lock up switch off. However some 2wd vans and HD truck versions had a36 spline. Given the complexity of the TCM control strategy, the engineers made every effort to allow for partial operation of the unit under most failure conditions. JT. It can also be controlled under DSC, or Driver Shift Control, e.g., "tap shifting". The thought is that the bowl shape of the TMBX is better suited towards a more even apply, and because its thinner, the TMBX piston has the ability to flex and better conform to the front cover. The 6L90 transmission is slightly longer and taller than a comparable configuration 6L80 due to its beefier internals. Accelerate from a stop with light throttle (15%), ensuring that upshifts 1st through 8th occur at engine speeds between 1300-1600 rpm. $ 158.00 Select options. The TCM-2650 is compatible with the GM 6L45/50, 6L80/90 . The case is a cast aluminum alloy. Would love your thoughts, please comment. vehicle weights. More or less a TT V8 german car so if the new 8 or 10 speed GM transmission would work where the 6L80E came originally and the CTS V, SS Sedan, and ZL1 Brembo brakes work it could be a great platform. The complaint A 2005 Ford F350 with the 6.0 liter diesel engine and 5R110W transmission has set a P0753 Pressure Control Solenoid A Electrical Fault code and a P2700 Transmission Friction Element A Apply Time Out Of Range code. Wait 1 second. What is most welcome about it is that it is a very durable, functional and impressive transmission assembly and appears to have a terrific prospect with GM and the aftermarket community. Learn how your comment data is processed. Thank you. A typical scene thats now playing out in transmission shops across the country goes something like this: A late-model, full-size truck or SUV is dropped off to get the transmission checked out. The stator shaft support housing comes with these gears as one assembly. Page 2 August, 2019 Bulletin No. Problem Owners may experience an ATF leak coming from under the vehicle. * EXCELLENT FOR VEHICLES THAT ARE EQUIPPED WITH ENGINES PRODUCING UP TO 650 FT LBS OF TORQUE. The 6L80 was approved for use in these vehicles weighing up to 8600 lbs. So its no wonder that the new cars accelerate so welltheyve got a ridiculously deep overall First gear ratio and reduced rpm drops between the gear changes. lost energy) are reduced by only having two of the six clutches open at any time. As to length, this transmission is 26-1/4" long. 6L80/6L90/8L90/10L90 AN Transmission Cooler Manifold Our Price: $150.00 Out of stock We now offer a convenient AN trans cooler manifold solution for the 6L80, 6L90, 8L90, and 10L90 transmission. Lots of good information I do have one question That no one seems to be able to give a good answer to. Thread starter 2nazty; Start date Nov 26, 2018; Nov 26, 2018 #1 2. Will this hurt the trani? TIPM Problems! Foremost on the list is the Sonnax clutch apply kit. Gilbert, Comes with a complete harness and the necessary software to program the TCM-2650 Module. Sonnax is an industry leader in the cutting edge design, manufacture and distribution of the highest quality products to the automotive aftermarket, commercial vehicle industries, and industrial sectors utilizing drivetrain technology. Brian at Tommy Boys Performance, however, has the opportunity to work with a local dealership assisting them when their workload gets heavy. That certainly holds true for the 6L80, 6L90. All Rights Reserved. Its a little tough to see, but the thickness of the pistons is also different. TCRA Annual Seminar Coming to Charlotte this April! Shift the transmission to Neutral. Thats a great question. Lets talk about some of the concerns and fixes we have been seeing. The General Motors 6L80-E & 6L90-E transmissions are among the most diverse and capable transmissions of their time; being used in everything from exciting muscle cars to family SUV's. In this Drivetrain 101, we'll analyze all of its most prolific problems, solutions and upgrades. This pan fits the GM 6L90, 6L90E transmission, typically found on these vehicles: . This transmission makes an excellent conversion transmission due to its adaptability into most Jeeps longer than CJ5s. First, check for updated programming for the TCM strategy. Production Began 2017 The ball bearing remained tight on the stator shaft support housing. Indirectly affects shift scheduling and TCC scheduling. Before we get started, lets cover the basics. This product is NOT intended to be used on factory OE vehicles such as; Cadillac, Corvette, Camaro Thats right, you can find a variation of this Ford GM 10-speed automatic transmission in the Ford Mustang GT and the Chevrolet Camaro ZL1! It began replacing the 4L60E transmission in many vehicles starting in the 2006 model year. And now, with some of these transmissions coming out of warranty, the aftermarket will soon begin to see issues that occur with them beyond their first years of life during their aging process. Im not tuned ( not yet anyway), however, if I knew then what I know today, I probably would have went for the M6. They dealership gave Brian their opinion of what was making the noise. Note, all models will have a warmer. Allows easy highway cruising, seamless downshifts, Transbrake and 2nd gear (2.34) leave options through multiple templates tuned independently of the engine management system! 2. Can I assume my car has the General Motors GL80 with the 4.02 first gear? Each clutch is controlled by a corresponding shift solenoid A-F. This means that its designed for rear wheel drive vehicles only. It looks nearly identical to the 6L90. Thanks for the question! The GM 10L80/90 transmissions began production in 2017, meaning that were closing in on six years of this transmission being on the road. The question is will the 10L80 be as strong as the 10L90? The subject is a rather common electrical fault that may occur on the PCS line pressure solenoid circuit, which results in max line pressure. The transmission typically accepts a 6.3 quart fill. This is an immediate DTC that effects emissions. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. Although the basic engineering is the same, the GM 10L80 and Ford 10R80 each have proprietary control software, along with a few other differences that are suited for each specific application. You know where this is going yup, its the converter. Maximum engine input torque for the 6L80 is 440 ft. lbs. It does not have a direct 1:1 ratio like the 4L80E and 4L60E, which is worth noting. 10L80 Transmission Specs General - 10-speed automatic with integral turbine clutch torque converter Application - RWD & 4WD / AWD RPO Code - MF6 Production Began - 2017 Case - 1 piece aluminum with integrated bell housing Torque Converter - 260 mm with Electronic Controlled Capacity Clutch (10L80 ECCC) Thought's? 700R4 / 4L60E with PATC close ratio gear set. The complaints may be difficult to duplicate. Im thinking 3.73. However, if you look beyond the outside of the front covers of TMBX and JMBX and look inside the units, the similarity quickly disappears. Sixth 1.28 Indirectly affects shift pressure control. 6L80/90 - 8L90 Floor Tap Shifter Kit. Will it be like the 5th gen's where the ss got the 6L80 and the more powerful ZL1 got the 6L90? Find Dealer. - Critical wear areas and vacuum test locations: GM 10L and Ford 10R series, - Shift pointers: A 4T65-E that wants to move in Park and Neutral, Being tuned in: The value of transmission tuning, Ford harsh downshifts: 6R75 2-1, 10R60 7-6, Announcing the winners of the Top 20 Products and Tools contest, Diagnosing an unusual problem: A slow-to-respond solenoid, Video: Lubegard Limited Slip Supplement overview, Diagnosing Chrysler transmission max line pressure and P0933, P0869, P1745 codes, How to service the Honda 10-speed transmission, Solving electronic control problems in todays automatic transmissions, Sonnax highlights 10L/10R solenoid stabilization retainer, 9T clip insert, GFX adds new pump for vintage Powerglide models, Searching for the source of an unexpected transmission fluid leak, Transmission slipping in fifth gear: An elusive cause of a common problem, 10R80/10L90 Ford & GM Ten Speed Unique Filter System. At times the 10-speed transmission may skip gears when the vehicle downshifts to a complete stop. I am interested in enhancing my vehicles performance. Related Articles Dana offers Spicer end yokes for Allison Transmissions ATI introduces six-speed Chevy transmission performance package Georend Transmission adds Ford 6R140 transmission pan kit. The Transmission Control Module (TCM) is an adaptive learning, 32-bit computer integrated into the valve body of the 6L80 / 6L90 and communicates with the Engine Control Module via the onboard vehicle CAN bus network. Read more columns from our Shift Pointers series here. The button for Tap control is on the top of the shifter, making it easy to use in both left and right hand drive vehicles. Torque Converter 260 mm with Electronic Controlled Capacity Clutch (10L80 ECCC) Solution This 10L80 transmission problem could be the result of a failed oil cooler line fitting retaining bolt. I would like to keep the turbo small so it would spool extremely quickly and the compression high to be responsive. Always inspect the sump for possible evidence of debris that could indicate the pump drive gears could be failing. These solenoids are directly proportional in that zero current equals zero pressure, and maximum current equals maximum pressure. The 10L80 transmission is a 10-speed longitudinal automatic transmission that was designed to operate near the efficiency of a CVT while improving fuel economy in GM high-horsepower vehicles highlighted by the Camaro, Suburban, Tahoe, and Escalade. R.F. or gross weight of 14,000 lbs. I would be willing to get it rebuilt, but want it to function like it should (not back to the way it came from GM). Why the thin woven carbon clutch doesnt typically fail in the 4L60-E TMBX. As you build the best transmission that you can for your customer, you should consider including an updated torque converter in the repair estimate. Internally they are very different but at least with the 8l90 you do not need to completely disassemble the transmission to convert to 4wd from 2wd. GM has been useless to say the least, and waited me out (now off warranty). With its 2017-2018 heralding, Ford has equipped 3 domestic models with the 10R80 transmission. All of the 1998-up cases used behind the LS family of engines used the separate bellhousing style of case. The GM transmission is the 10L80, which is available in several models as well. Thats more than almost any other GM automatic transmission. Beginning with the F-150, it then made its way into the Mustang and the Expedition (as well as the Everest, and upcoming Ranger reboot). As these units accumulate more mileage, these concerns may become more frequent. and the maximum output torque is 664 ft. lbs. Shift the transmission to Drive. So the service life is limited, and the warranty will only last 1-2 years. The 8L90E is an 8 speed automatic transmission developed by General Motors and introduced for the 2015 Model year. 2024 Mustang Prices Are Out, Dark Horse Is . Do you thing the 10L80 can be beefed up using 10L90 parts? Copyright 2023 - Transmission Repair Cost Guide. to 885 ft. The factory 4L80Eand the stronger 4L85is essentially a traditional TH-400 three-speed automatic equipped with a fourth, overdrive gear. How quickly time passes by. Customers' pictures and movies from drag racing competitions. Stock capacity . We had to use a spacer from Advanced Adapters but otherwise they are the same. In the TMBX, the damper is on the transmission side of the clutch piston, and in the JMBX, the damper is located on the engine side of the piston. In fact the input torque rating is 440 lb. Its been on the road for a few years, and were starting to see some common failures for this unit. As with earlier Hydramatics, the 6L80 will accept either the 258mm or 300mm torque converters. Special tools are often needed when diagnosing transmission problems and overhauling units. $3,245*. Because of this, the 6L80 - despite having two or three more gears than its predecessors, is unexpectedly short in length. Its only about a 3/4-inch band around the inside circumference of the converter. Sometimes, finding the cause of a complaint isnt as straightforward as one would expect; sometimes, these causes can be very elusive. For the most part, this transmission has been phased out by the 8L90E already, but is still in prodution. The original first three gear ratios are in fact still the same as the TH-400. The 10-speed first appeared in the 2017 Camaro ZL1 backing up the 650-horsepower, supercharged 6.2L engine. Second 2.99 * WILL ALLOW USE . Ford considers this to be a normal condition! Other common 6L80E transmission problems include: The transmission can also signal the engine to drop power during a shift if there's a possibility of clutch damage. I also have a 2wd 2006 Trailblazer SS with a forged 416ci stroked LS3 which makes around 600 hp or so with a Yank SS3600 stall converter. The 6L80 was used in trucks, particularly in the GMT 900 platform. Unlike the 4L60E and 4L80E, the 6L80 is not always referred to as with the E on the end because its been over 25 years since the last non electronic GM transmission has been in production. Its a longitudinal transmission (thats what the L in 6L80E stands for). GM states, ". ** Currently 10L80 units are 2017+ so are dealer-only or salvage yard only. This took the dealership a much longer period of time in acquiring these bolts for Brian to complete the job. Note, some customers may complain of a converter type whine noise coming from the transmission. As the transmission approaches normal operating temperature, reverse movement is non-existent. The bottom line: The very thin (.020") woven carbon friction material cant survive the way the JMBX piston applies. GM was still using their trustworthy 4L80E transmissions for heavier duty use, which was essentially a 1960's technologyTH400with added 1990's overdrive and electronic controls. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. The 10L80 moniker is decoded. About 80% of issues are cured by updating the programming. The 6L80 / 6L90 TEHCM is located inside of the transmission on the 6L80 / 6L90 valve body. Quick 4 Stand-Alone Transmission Control System Longitudinal transmissions [ edit] Aisin AR5/MA5 5-speed longitudinal manual made by Aisin. Fluid Type Mercon ULV ATF You will need to ship your transmission to us for the rebuild. Double-step (skipping a gear) upshifts results when a longer time is spent in gear. GM now also offers both 8- and 10-speed automatics. The source of the contamination, however, is not readily apparent. So is the 10L90 entirely different or does it just have stronger parts?