Ninth 0.69 Applications. In doing this, we evaluated another GM unit the 4L60-E TMBX to see if we could pick up any clues. This transmission is the result of a collaborative effort with General Motors. Lots of good information I do have one question That no one seems to be able to give a good answer to. 2nazty New Member. About 80% of issues are cured by updating the programming. Solution This 10L80 transmission problem could be the result of a failed oil cooler line fitting retaining bolt. Thought's? full. lbs., with a respectable GVW of 15,000 lbs. So why does the JMBX converter have this chronic problem? All this is handled with application of planetary ratios. They all look really similar, so make sure that you bother to count the pan gasket bolts, especially if you have an untrained eye. From the workshop on ongoing projects and more, and where the new images are added afterwards. In fact, there are absolutely no cast-iron components, including the 10L80 stator support. You also asked about GM's new 6L80E. Do you think that I might pick up a few more hundredths if I switch the lock on say when I hit second? 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. 10L80 Transmission. The 6 speed takes a fair amount of trans tunnel work and my Holley Dominator ECU can't control it. to 885 ft. Most of us have either seen or heard of the new 10-speed transmission Ford is offing behind the 2.3L EcoBoost, 2.7L V6, 3.5L EcoBoost, 5.0L gas, and 3.0L Power Stroke Diesel engines. Thanks to the optimal gear spacing, the engine RPM only drops approximately 20% when the 10L80 changes gear. There are swaps for the 6L80 and 6L90 but they dont support all the Trailblazers. It can also be controlled under DSC, or Driver Shift Control, e.g., "tap shifting". A second electric 10L80 pump maintains fluid pressure when the stop/start function activates. Structurally, the 8L90 is similar to the 8L45, except that it is made to handle more power and torque. Its the best of both worlds. Special tools are often needed when diagnosing transmission problems and overhauling units. What all needs to be done to change it from four-wheel-drive to 2 Wheel Dr? The transmission will bolt up but will not work since the TCM, Tehcm and BCM are application specific and cannot interchanged. LS 3 has a Big Turbo on it, I am only worried about rear gear, rest I have help with, Car never went over 130 or it red lined with Big Block, Never was a highway car, It has a 373 or a 323 in it, Not a 411 I know that much, Thats all, Im building a gen one Camaro and Ive purchased lt4 supercharged motor for it I was wanting to know if you know the difference in size for 10 speed transmission to a turbo 400 I need to know how much to raise my floor pan at tunnel and about how much fire wall to cut out. The location of the warmer and the routing of the hoses can vary widely. If you have any questions that I may be able to help you with, drop a comment or contact me. If the warmer is not mounted to the transmission, refer to factory information to locate it. Codes P0741 or P1744 may or may not set in the PCM or TCM (depending on application). Shop Finder We pride ourselves in staying at the forefront of our industry, technology, research & development and our commitment to you, our customer. 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. Honda CR-V Hybrid Racer Is an 800-HP Test Bed. 6L80E Specs The 6L80 is a robust transmission and can handle a ton of power. But tall highway gearing arent the only way that this transmission maximizes efficiency. However, it is a long transmission and is not compatible with short-wheelbase Jeeps such as the CJ5. Bolt and gasket inlcuded. Unlike previous shift solenoids, they are mechanical in nature in that no transmission fluid passes through them (Figure 2). The 6L80 was approved for use in these vehicles weighing up to 8600 lbs. It employs an even deeper First gear ratio of 4.02:1 with tighter gear splits but does not apply an overdrive for subsequent gears. Fluid Type Mercon ULV ATF Engine torque rating increases minimally, but the output torque rating of the transmission jumps up by nearly 220 ft. lbs. The Chevrolet Performance 6L80E trans comes with a set of wiring harness adapters and a flash drive that is used to configure the transmission to be used behind a GM LS engine in a rear wheel drive application. GM has been useless to say the least, and waited me out (now off warranty). Automatic Options - 4L60 and 4L60E. The bottom line: The very thin (.020") woven carbon friction material cant survive the way the JMBX piston applies. 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. Our theory as to why 6L80, 6L90 converters fail like they do is related to the shape and thickness of the JMBX piston. Gm hydro 10 speed. None of the above categories describe me. check the starter bendix and see if its loose and bouncing off the flywheel. and it can handle a total gross vehicle weight of 8,600 lb, which makes it a great transmission for LS swaps with no modification needed whatsoever. 97 it's a, I have a 2007 h3 hummer base model. The 10L80 was a joint engineering effort between GM and Ford. The source of the contamination, however, is not readily apparent. TAP-2000 is a floor mounted shifter with Tap up Tap Down for GM 6/8L80/90E transmissions. Read more columns from our Shift Pointers series here. : 18-NA-355 Special Tools DT-52263 Transmission Fluid Exchange Kit: DT-52263-1 Block Assembly (includes fluid drain Both 2wd and 4wd versions of the 6L80 can be used equally well, and there are no inherent advantages to either one once you have installed our adapter assembly. - Scope testing the Ford 10R80. The GM 10L80/90 transmissions began production in 2017, meaning that were closing in on six years of this transmission being on the road. RECALLS! * 10L90E TRANSMISSION. 10L80 vs 10L90 Transmissions. You can scribe numbers on them from 1-6 if you choose for a quick reminder of their location. Even though it has two more gears, creative packaging allows the 10L80 transmission to be no bigger or heavier than an 8L90 or 6L90. Subscribe Now Second 2.99 OPTION 2- The newer and still somewhat mysterious 6L80e has a very enticing ratio selection (4.02, 2.36, 1.53, 1.15, 0.85, 0.67) that should allow the engine to stay within it's "power band" resulting in more usable power. It is now on week number 7 at the dealer for warranty and the GM engineers are running that show only allowing the dealer to replace what they deem necessary. 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 ? Indirectly affects shift scheduling and TCC scheduling. Or did the OE stamped steel cover and piston flex and twist to the point that the clutch surface was not flat, causing a premature friction failure? The check engine light might be on, and the customer complains of a slipping sensation with intermittent clunks. The subject is a rather common electrical fault that may occur on the PCS line pressure solenoid circuit, which results in max line pressure. Theres also a unique internal thermal bypass that allows the transmission to warm up faster, reducing fuel consumption on cold starts. The following drivability conditions will be present when this type of DTC is stored. TSB 18-NA-026 Transmission fluid leak I didnt realize that it came equiped with such a lame gear ration 3.08. But look at the clutch pistons and spring dampers they are markedly different. Looking at the two different front covers from the OUTSIDE, they are very similar, with just a few minor differences (Figure 2). Why is that? 8L80E Quick 4 Stand-Alone Transmission Control System Reactions: me32. RATIOS 4.70, 2.99, 2.15, 1.80, 1.52, 1.28, 1.00, .85, .69, .64. Now he serves as a regular contributor to OnAllCylinders. There are too many differences between in communication protocols and renders the transmission nonfunctional. You are browsing camaro6. Helping transmission shops achievesuccessful and profitable operation. If you have your heart set on a six-speed automatic to back your LS, consider TCI's 6X transmission. Your car is quick! It also contains a durable transmission pan, reliable gear seat, EPC, a 13-vane pump assembly, high-performance cooler, hardened stator shaft with rings and specialized control solenoids. This wavy nature of the clutch surface is made worse with many miles of usage. Powerglide (bellhousing pattern - Chevrolet, Fit-all), TH350 (bellhousing pattern - Chevrolet, BOP, Fit-all), TH400 (bellhousing pattern - Chevrolet, BOP), TH200-4R (bellhousing pattern - BOP, Fit-all), TH700-R4 /4L60 (bellhousing pattern - Chevrolet). 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. The 6L80 denotes that the transmission is a 6-Speed, Longitudinally mounted, and for 8000 lbs. Muncie M20 4-speed longitudinal wide ratio manual transmission made by GM at their Muncie, Indiana factory. The solenoids are calibrated from the factory and are not all the same. Larry Callahan Founder/Administrator of Pro-Touring.com, G-Machines.com and HostMyJunk.com To advertise on Pro-Touring.com click here So whats the most common failure thats seen time and again with these? 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). 4L60E (bellhousing pattern - Chevrolet/removable), 4L60E / 4L65E (w/ removable bellhousing) All LS1 Type, 4L80E 1991-Later (bellhousing pattern - Chevrolet), 6L80E 2006-Later (w/ removable bellhousing), 6L90E 2006-Later (w/ removable bellhousing), Splines (output shaft)Pan Bolts (number of), Transmission Fluid Capacity (see also capacity of fluid in the converter here). All of the 1998-up cases used behind the LS family of engines used the separate bellhousing style of case. How do Sonnax components prevent the failure that plagues these units? A horsepower revolution spawned by GM's increasingly powerful Gen. III+ V8 engines and their aggressive platforms such as the Cadillac STSV, XLRV, various trucks and SUV's and the venerable Corvette. Sometimes, finding the cause of a complaint isnt as straightforward as one would expect; sometimes, these causes can be very elusive. 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 GM 10L80 Hydra-Matic transmission is one such hybrid component that General Motors jointly developed with, wait for it, the Ford Motor Company! Since buying the car I have been trying to learn a bit about the auto trans. Page 2 August, 2019 Bulletin No. In fact the input torque rating is 440 lb. Had transmission rebuilt (Pro).My problem is that when it gets around 35, 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Mazda 6 P0320: Meaning, Causes, & Diagnosis. One common 6l80 issue due to design flaws include premature clutch failure. 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. It all comes down to the extra rigidity and flatness of the surfaces. Its extremely important to scan all modules for codes and address those codes first! Grade braking and clutch line pressure (for greater holding power) are additionally great features that are activated by Tow / Haul mode on the truck platforms. If the transmission is in the vehicle you can use the RPO tag in the glove compartment. 3-Bolt Adapter Flange Yoke Kit. But the replacement of this assembly requires new bolts. 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. Over time, technicians start to see the same patterns of failures in different families of units. Most full-size trucks and SUVs with a 6L80, 6L90 use a JMBX full-size (300mm) style converter. This drives up the price of the rebuilt converter, but ensures that this kind of failure wont happen again. Accelerate from a stop with light throttle (15%), ensuring that upshifts 1st through 8th occur at engine speeds between 1300-1600 rpm. With 10 forward gears to choose from, the 10L80 transmission is able to reduce the fuel consumption of a high horsepower engine. Its interesting how the new 8- and 10-speed automatics have essentially turned the traditional powertrain ratio scheme 180 degrees. It appears that GM has put a very minor taper into the cover and possibly the piston as well. var d=new Date(); *$3,245 does not include any Hard Part damage, Torque Converter or TCM/ECM tuning. Its a little tough to see, but the thickness of the pistons is also different. 6L80/90 - 8L90 Floor Tap Shifter Kit. The question is will the 10L80 be as strong as the 10L90? The dealership was able to provide this part rather quickly. These tight gear ratios not only allow for lightning fast upshifts and downshifts. For a type A code, the MIL will illuminate after one drive cycle with the malfunction present. You will need to ship your transmission to us for the rebuild. 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. Inspect the warmer for damage and related lines for leaks (Figure 4). Also fits '05-'06 Pontiac GTO (differential side). Why the Sonnax forged covers and pistons solve the problem. Do you thing the 10L80 can be beefed up using 10L90 parts? And you are correct the converters in these units are experiencing a high percentage of failure and are more problematic than normal. The Ford 10R80 is a new 10-speed, rear wheel drive transmission that's available in several models, beginning in 2017. This allows him to see what kinds of issues some of these transmissions come back to the dealer with while under warranty. While its true that, many times, the root cause of a converter failure lies in the transmission, in this case, there is ample evidence that the opposite is true: an inherent torque converter problem might be the root cause of a lot of the transmission failures. When its enabled at low speeds the exhaust tone becomes muffled, the AFM valves clatter open and closed, v4 vibration and increased injector noise is nothing but annoying, especially with a convertible. How is this different from the GM 6L80E transmission that is used in the Corvette or in the newer GM trucks? 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. All I can find is that it is sealed from the rear and just needs a new tail housing but some say its got to be completely rebuilt from the inside. The dipstick has three different fill marks, A, B and C. These fill marks are model dependent and should be verified with factory information when the fluid level is checked (Figure 11). In addition to developing innovative, quality repairs for transmissions, Sonnax is also the premier, full-line supplier of components to the torque converter remanufacturing industry. Complaints of erratic shifting, poor shift quality, missed shifts, and other shifting and TCC control complaints are becoming more common with these units. It probably wont do much for the elapsed time which is all that really matters. See how the ratios have swapped places? 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. 700R4 / 4L60E with PATC close ratio gear set. The 1-piece aluminum case houses a slim 260mm 10L80 torque converter inside the integrated bell housing. The 6L80 is a robust transmission and can handle a ton of power. 6L80E Torque Converter Power Raptor Full Size Non-Billet Number 88-6L80-1, now with Billet Cover Option. For both types A and B, a freeze-frame record will be stored in memory if the MIL illuminates. 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. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. The 6L80 was used in trucks, particularly in the GMT 900 platform. Will it be like the 5th gen's where the ss got the 6L80 and the more powerful ZL1 got the 6L90? It would be a huge mistake not toAFM is garbage. 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. We are High Performance Transmission Builders It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. Double-step (skipping a gear) upshifts results when a longer time is spent in gear. So is the 10L90 entirely different or does it just have stronger parts? 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. Repeat Steps 3 through 9 six (6) additional times. A JMBX torque converter rebuilt with a Sonnax forged cover and piston has proven to be a successful recipe for a long-lasting unit, preventing this typical pattern failure. Respectfully, Len Gilbert Kitchener ON Canada. All previous GM automatic transmissions were virtually all based on hydraulic controls, and received increasing electrical elements as they modernized. Brake very gently to a complete stop and hold the foot brake for five (5) seconds. 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. 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) The question is will the 10L80 be as strong as the 10L90? 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 6L90 transmission is slightly longer and taller than a comparable configuration 6L80 due to its beefier internals. The GM transmission is the 10L80, which is available in several models as well. R.F. The new 2019 Camaro gets the a10 but, Its not the a10 (10L90) from the ZL1. Accelerator pedal position: Directly affects shift scheduling, TCC scheduling, and transmission diagnostics. After a prolonged drive time, DTC P0752 Pressure Control Solenoid A Stuck On. * An extension housing p/n 8673406 (old p/n 24214689) is available for the TH700R4/4L60 transmission that moves the rear transmission mount to the same position as a TH400 (short-style 4" tail) or TH200-4R transmission. For now, the bulk of reported cases are related to diesel vehicles. But I was su unhappy with it I sold a bunch of parts and began changing the built. What is your recomendation for towing? This is a completely new and different transmission compared to the 4L80E. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. The small 10-speed gear steps allow the engine speed to drop to lower values than it would in the 6-speed transmission, providing for the best fuel economy. This transmission is out of a Tur. 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. Copyright 2023 - Transmission Repair Cost Guide. Diagnosis and correction of a max line pressure condition may become, With Hondas 10-speed front wheel drive transmission (see Figure 1, above) going into its fifth year on the roads, its feasible that one may show up in your shop for service. This is the abridged version of my problem. It is currently phasing out the 6L80/6L90 transmissions (although it hasn't done its all the way yet. By the time a converter rebuilder opens up a JMBX, the damage is done, and it can be hard to see what happened first. Learn how your comment data is processed. Your email address will not be published. Within only a year, GM had introduced an even stronger variant of the 6L80; the 6L90, RPO code MYD. If we change to the latest GM 10-speed automatic it has a 4.70:1 First gear and is factory matched with a 2.85:1 rear gear. Ive not done the math on total surface area, but its likely the clutch would not last long engaging 450 hp. The factory clutch apply piston has a sharp, square edge that does not completely apply force across the entire clutch piston. Conveniently, the main transmission that the 6L80E is going to be confused for all have a different number of pan gasket bolts. Beyond that, its probably not a good idea even if it will allow lockup because that clutch surface area is limited. Did they release much info about it on the trucks? GM 10L80: A new kind of pump noise. Also since the transmission is different the gearing and tuning are naturally different. Can I assume my car has the General Motors GL80 with the 4.02 first gear? This seems to indicate that there will be other 10L80 transmissions that will be experiencing this same new kind of pump noise condition. Comparing that to our old TH-400 combo, wed need 5.40:1 rear gear to equal the overall First Gear ratio in the new Corvette. This is a normal and desired behavior. Hi Jeff, I have a 2016 Silverado with the 5.3 and the 8 speed transmission. By Wayne Colonna. It's a longitudinal transmission (that's what the L in 6 L 80E stands for). Fits 6L80, 6L90, 8L90, 10L80 units, TR6060, TR3160 manual units. Newer to the transmission world is its use of direct clutch-to-clutch shifting and the total lack of bands. Swapping to this transmission is currently difficult from an electronic control standpoint. Retiring Early The Transmission Industry Has Been a Dream Come True, A two-piece valve body with eight solenoids. It features a dry weight of ~195 lbs. Trans temps climbed to 195 and has stayed there ever since. _____ HBM 2016 2SS A8 NPP Pray . Other common 6L80E transmission problems include: When other diagnostic trouble codes are present, there can be different, specific drivability concerns caused by the failure management program. Online Buyer's Guide What came first: the chicken or the egg? However, at light pedal or road load, single-step upshifts will occur. GM now also offers both 8- and 10-speed automatics. and it can handle a total gross vehicle weight of 8,600 lb, which makes it a great transmission for LS swaps with no modification needed whatsoever. At times the 10-speed transmission may skip gears when the vehicle downshifts to a complete stop. The overall First gear ratio is deeper at 2.97:1 which means the car builder can leave a taller rear gear ratio in the rear end and still have great First gear acceleration. Autostart / Autostop function disabled (if equipped), Transmission Adaptive Pressure Control and adaptive shift values Frozen, High line pressure (harsh shifts and engagements). Chevrolet, Buick & GM Engines into the Jeep Ford 1.8L - 2.5L "Pinto" Engines into the Jeep 4L60E (and its tougher 4L65 & 4L70 variants). 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. 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. Im thinking 3.73. In 2006, GM superceded Dexron III as the recommended fill with Dexron VI, which is backwards compatible with the earlier versions. While not new to the 6L80, it uses an Input Speed Sensor to monitor input speeds to compare against engine speed and Output Shaft Sensor speed, using this data to adjust shift speeds under instantly detectable conditions. 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. Be aware of your output shaft version before proceeding with any adaptation. 80 series is rated for 80 Newton's, 90 series is rated for 90 Newton's. Engine | Drivetrain | Powertrain Technical Discussions, https://www.delphi.com/dynamic-skip-fire-1. Longitudinal transmissions [ edit] Aisin AR5/MA5 5-speed longitudinal manual made by Aisin. Looking for parts number : new shaft, copling et seal and where to find them. How quickly time passes by. ** Currently 10L80 units are 2017+ so are dealer-only or salvage yard only. 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. Will this hurt the trani? document.write("- "+yr); Joined Feb 11, 2007 Messages 11 Location . Customers' pictures and movies from drag racing competitions. First, check for updated programming for the TCM strategy. Objectively, it is a fairly simple repair: simply remove the transmission pan, remove the valve body, unbolt the TEHCM from the valve body and install the new one. (incl. I believe this would allow a lower horsepower engine to perform similarly to a higher HP engine mated to a TH400. Stock capacity . The 10L80 moniker is decoded. As a transmission rebuilder, you know that flatness and rigidity of both apply and reaction surfaces are key to long clutch life in transmission clutch packs its the exact same in the torque converter. The 4L60E was the first generation of transmission to work with a Gen III Vortec or LS motor. Where the original 4L80E First gear is 2.48:1, TCI created a 2.97:1 First gear ratio. * DOES NOT INCLUDE A DRIVESHAFT OR CROSSMEMBER. Maximum shift speed is 6500 RPM. 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).

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