On the other hand, the 4l80e weighs 236lbs with a range of 26.4. Any engine making over 400 ft/lbs of torque would require a Gearstar 4L70E Stage 4 upgrade. 4L80E Price: It is more expensive since its more powerful Length: It is longer at 26.5 inches Transmission Power: Can support strongervehicles such as towing trucks and at faster speeds with heavy loads Date of Manufacture: 1991 Maximum GVWR: 8000 pounds Sensors: 2-speed sensors Build Material: Aluminum How Much Does It Cost To Replace An Alternator. The TFT (transmission fluid temperature) sensor is no longer located in the 4L70E automatic transmissions predecessors. ( 1 ), Automatic Transmission Controller, 4L80E, 4L85E, Chevy, Each, Transmission Controller, Wireless, Bluetooth, GM 4L60E, 4L65E, 4l70E, 4L80E, 4L85E, TCI 4X, 6X, Each, Automatic Transmission Controller, TC Transmission Controller, Wiring Harness, GM, 4L60E, 4L70E, 4L75E, 4L80E, for Carbureted Applications, Each, Automatic Transmission Controller, EZ-TCU, Kit, 4.6 out of 5 stars Find out the differences and similarities between the 4L60E and 4L80E transmissions with information on how to swap them. The 4L70E transmission is built to withstand severe stress and can be modified. You'd be better off going with a TH350. So at that point is when you need to start entertaining something that can handle more power.. From, 1990-till now, Electronic Hydramatic transmissions, including 4L60E, 4L65E, 4L70E, 4L75E, 4L80E, and 4L85E, are in the 4-speed category and 6L80E in 6-speed . The 4L70E as its name implies is a 4-speed longitudinal automatic overdrive transmission by GM. The 4L80E is the descendant of the "Ole Reliable" TH400 transmission. Anything beyond 500-600 ft/lbs of torque needs the 4L80E.. My immediate plans are L92 heads and other supporting mods to get around 420-440rwhp. 285hp and 325 ft-lbs is what this one is rated at. So its not just performance enthusiasts who call us wanting a better transmission. Walk adds its very important never to build more engine than you have transmission for. To alter the transmission tunnel, you will need more than just a hammer. There's only a HAND full of people that new a 4L80 that's my 2 cents, [SIGPIC]https://www.tbssowners.com/forums/image.php?type=sigpic&userid=6940&dateline=1378924058[/SIGPIC]. But opting out of some of these cookies may affect your browsing experience. With a few improvements in hard parts and friction materials, and the 4L70E can easily stand up to the type of power that todays engines are capable of producing along with maintaining the benefits of overdrive and electronic shift control. While many mods are available for these transmissions, there is little that can be done to shorten up the 12 shiftsome cars like it, some may not. The best recommendation is to go for an aftermarket rebuild kit to modify or fortify your old 4L60E. 2008 BMW E92 335i Coupe Cobb Tuner, DCI, and much more in the works. Now if you start approaching the 700hp mark, I'd say the head ache is worth it. Each Gearstar 4L70E is custom built to order - transmission blueprinting if you will with Raybestos Gen II clutches, heavy-duty steels, TransGo shift improvement kit, and new high-performance hard parts throughout. Find Dealer Connect & Cruise Powertrain System How to Check Automatic Transmission Fluid. These cookies track visitors across websites and collect information to provide customized ads. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. (been there done that, lol) ~ The PCM "WILL" control the 4l80e. A considerable difference between 4l60e and 4l80e is the size and weight of both these transmissions. Feb 4, 2003. It does not store any personal data. It also contains a durable transmission pan, a reliable gear seat, EPC, a 13-vane pump assembly, a high-performance cooler, a hardened stator shaft with rings, and specialized control solenoids. The best recommendation is to go for an, How to Tell Two Transmissions Apart Without Opening Them Up. Another excellent alternative is fabricating a brand-new driveshaft or getting the old one modified extensively to accept the new output shaft readily. . 4L60E 4L65E 4L70E 4L80E 700R4 200-4R. The 4th gear of the 4L70E is a .70 overdrive. if ordered today, Automatic Transmission Controllers, Controller, Harness, Software, Chevrolet, 4L80E/4L85E, Kit, Estimated Ship Date: These cookies ensure basic functionalities and security features of the website, anonymously. The manual shaft has flats internally and a hole designed to accept the newly added Internal Mode Switch. then plug the new added harness into the FRONT VSS. It is the last iteration of a unique design launched long ago, starting with the 700R4. Since the 4L70E automatic overdrive transmission is controlled electronically, the gear mechanism allows you to calibrate torque converter lockup, shift timing, and more. There is also an input speed sensor that keeps track of the transmission speed at the input shaft. Upgrading the friction materials in a 4L70E can go a long way in improving its durability and power rating. ^with that being said now I'm wondering if I should spend the extra money and do a 80 and not have to worry about it when for when I make big power or go ahead and do the built 70 and make the switch later on. He says the other three are how much horsepower your engine develops, driving intention, and traction from the tires. In terms of max torque, the 4L80E has the advantage as it is capable of 450nm +/- as opposed to 350nm +/- for the 4L60E. The 4L70E is a 4-speed automatic GM transmission with up to 5 gears, including reverse. Oct 6, 2016. Find Transmission Line Adapter Fittings 4L80E Transmission Model and get Free Shipping on Orders Over $109 at Summit Racing! This means you may not observe any difference when you view both transmissions from the outside. In other words, dont even think about it. Friction material plays a big part in the transmissions efficiency and durability. says Walk. It has over 50 -9 Second passes with ZERO failures!!! The 4L80E, however, does use a much larger torque converter and mounting pattern, as we'll see. The only difference is the speed sensor located in the pump of the 4L70E, and the convenience you personally have in picking between one and the other depending on your available resources, market prices, and any existing deals. Chevrolet Performance offers multiple transmission control systems for both factory-style EFI setups and carbureted LS engines, as well as 4L60 and 4L80-based performance automatic transmissions. Though they are not compatible directly with the 4L60E due to they make use of various torque converter and input shaft. for 4L80E applications. Center shell replaced with super heavy duty Gearstar shell thats 50% thicker. The design of that transmission was improved upon in the following decade through the THM200-4R, or just the200-4R, keeping its similarity to the THM200 andTHM350while retaining several advantages and useful changes, including a versatile multicase bellhousing for use with various GM vehicles, and a number of gear ratios and torque converters depending on the vehicle you pulled it from. The way that both transmissions work is the same. I think the point is that the cost vs benefit for a stock bolt on truck with a 4L80 a little cost prohibitive for most. The cookie is used to store the user consent for the cookies in the category "Performance". 4L70E indicate a higher capacity, than the 4L60E transmission. This meant a change in the valve body casting. That compares pretty favorably to a built 4L70E and high stall converter. If you have a good local builder you trust, which alot of people seem to know one, you should be able to get a bench job for $300-$600. Electronic control transmissions are different from manual transmissions. Both transmissions require Dexron IV to run properly. Copyright 2023 Mechanic Base. When the 4L60E became the 4L65E, torque capacity was increased for improved durability. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. 711,2 mm. It also shares the same basic design and case with the 4L60E and the 4L65E. However, if you are opting for something more budget-friendly, you want to consider the 4L60E instead. "Most people do not listen with the intent to understand; they listen with the intent to reply. You can order this part by Contacting Us. You might be interested in upgrading the transmission in your GM truck or SUV. You must know the various gear ratios if you plan to swap the transmissions. Heres a quick little rundown on the 4L70E, its relative history in the world of GM transmissions, and its potential potential that transmission experts can take, unlock, and transform into pure performance. If you are looking for a pretty solid GM transmission within the 650 HP and ft./lbs. Comes with 17 Grade 10.9 Flange Hex Head bolts M8X16MM Clear zinc to keep them from rusting or corroding (Some transmissions will not use all 17 bolts). With either model, you get an electronically-controlled GM transmission. 6L80e to 4L80e swap. A welder will also be necessary. This makes the 4L70E much more versatile than the older throttle valve cable predecessor, the GM 4L60s. This cookie is set by GDPR Cookie Consent plugin. The 4L80E offers more power than the 4L60E. 6 Causes of Transmission Fluid Leaks and Repair Cost. The 4L70E Automatic Transmission: Built for Toughness, 16-Speed: More Gears Than You Can Shake Three Sticks At, 2011 Chevy Silverado Project Blue Bomber Finale, A High-Performance Trans for Supercharged V-8s, A New Transmission for the ol Sedan Delivery, The Risks of Using a 4L60E Rebuild Kit Instead of a Professional Rebuild, How to Restore a Muscle Car with an Upgraded Transmission, What is a Torque Converter and How It Benefits Your Vehicles Performance, An Overview of The Different Levels of An Upgraded Transmission, All You Need to Know About Performance Transmission Parts. It is also the final iteration of a design that started back with the 700R4. Later- You may or may not need to repin your harness. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. In this guide, we will evaluate both transmissions and show you the differences. The 4L80E contains a pan that is oval, while the 4L60E has one that is shaped like a rectangle. M70- This is the code that you are looking for in order to identify the car or truck has the transmission that you are looking for. It's a model that was designed for high-performance functions, from towing and hauling to hot rodding. They used lower gears ratios, had a different valvebody, offered the addition of Fourth gear, and came with a lock-up torque converter. Depending on what you want, it may be an excellent transmission and just the thing youre looking for. We will safeguard your e-mail and only send content you request. The cookies is used to store the user consent for the cookies in the category "Necessary". Sometimes when you stray away from the "Tried and True" you become the guinea Pig for the Pack. All 4L__Es utilize a torque converter lock, and the 4L70E is no exception. Sales & Info: 330-434-5216 Fourth gear is a .70 overdrive. Any little differences from year to year in the 4L65E that make one year more desirable for an LS swap? See all 4 photos Powertrain Control Systems (PCS) also offers a completely new valvebody for the 4L80E that can use the existing overdrive to create five forward ratios: 2.48/1.86/1.48/1.00/0.75 . Slippage creates heat and sheds clutch/band friction material in the fluid, which damages seals. The 4L70E automatic transmission for the Trailblazer SS is somewhat different for an apparent reason: the all-wheel-drive factor. And a trans controller. Its not special. 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. Your best bet towards visually distinguishing between the 4L60E and the 4L70E is checking the service parts identification sticker if its the stock transmission in a GM vehicle. Building In Durability With The Best Parts. Parts: 330-434-0104 If you are going to swap out the transmission, you must also purchase the appropriate dipstick. If you have anything to add, please leave a comment below. Basically a TH400 with overdrive and lockup. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. One of the big benefits with the HGM Controller is that you dont need a laptop to program your trans. Walk commented. Instead, you need a compatible wiring harness that converts everything over. Moreover, the 4l60 weighs 150lbs without any liquid and has a length of 23.5. This cookie is set by GDPR Cookie Consent plugin. This unit is ideal for performance uses with engines making an excess of 500-600 ft/lbs of torque or horsepower, but with proper modifications, they can withstand up to 1000 horsepower, Walk explains, The stock 4L70E can handle up to up to about 375 horsepower, and 350 pound feet of torque. I think the extra gears and the taller overdrive would be nice but I wonder if it's worth all the effort. The 4L70E is one of several GM-produced electronic automatic transmissions developed as a successor to the Turbo-Hydramatic line of transmissions, some of which continue to be excellent transmissions for plenty of performance builds looking for a good stock transmission with aTV cableover electronics. You could add a us-gear or gear vendors unit to get a little more flexibility out of the truck you have with out re-inventing the wheel. The 4L80E is just a longer, heavier, overdrive version of the TH-400. 593,7 mm. But opting out of some of these cookies may affect your browsing experience. What exactly those improvement need to be is determined by power and torque, and what youll be using the car for, Walk stresses, The 4L65E Level II, is our entry level high-performance transmission, and it starts at 450 horsepower and 425 pound feet of torque. This cookie is set by GDPR Cookie Consent plugin. On average, you can expect to spend a little more than $2,000 for a 4L80E transmission. if ordered today, Automatic Transmission Controller, Smart Shift, GM, 4L80E, Kit, Estimated Ship Date: Nissan 350z vs. 370z: Differences & Which Is Better? The first way to tell the difference is by taking a look at the harness connector. Upgrading to the 4L70E automatic transmission is your best bet if you are looking for or require a transmission capable of working up beyond the realm of 425 ft./lbs. 508 mm. Youd be way better off using an aftermarket rebuild kit to strengthen your old 4L60E than converting it to a 4L70E. Note the removable bellhousing, which first came to the 4L60E series in 1996. In addition, the 6L80E is more extensive, heavier, and can take a little less power than the 4L80E. None of these new parts with the. Between the 4L60E and the 4L70E, the biggest difference is time. You must keep this in mind before you swap out the two. This is the first of our new automatic transmissions, as the 700R4 eventually was renamed into the 4L60, in keeping with a new GM naming scheme, in 1990. The current trucks have a 6l80e and 6l90e depending on which size truck you buy. Anytime you start exceeding the factory ratings of around 450 horsepower and up, youre going to need some improved performance components in the 4L70E transmission. It is also the final iteration of a design that started back with the 700R4. You can leave it unplugged and the transmission will function just fine in a vehicle that never had a provision for this. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. It uses the same first three gear ratios but adds a 0.75:1 overdrive. It was mainly used for - and 1-ton SUVs or trucks, starting with the 1991 model year. Hence why I said if your going for power stick to the 60 or 80. Ive got an 06 behind a 5.3. If you take out the 4L60E and try to put in the 4L80E, you must make room for it. Shorter drive shaft ,1350yoke , different converter . ( 18 ), Estimated Ship Date: You will spend more than you will for a built 4L70 thats for certain. LS based bell-housing with 7 mounting holes, Casting # 24206952. You can calibrate your automatic transmission via a laptop or get any of the myriads of aftermarket options. Most of the differences between the 4L60E and the 4L70E are internal. The connector pin in this automatic transmission is far different from the ones found in its predecessors. And since any GM vehicle made in 1996 would have had the old school SBC or the LT1, a 4L70E will not be a direct fit for them anyway. The maximum amount of torque handled by the 4L80E is 440 pound-feet. The basic 4L80E design was taken from the heavy-duty TH400. Later models in the 1970-80s have Turbo Hydramatic design including 700R4, TH350, and TH400 in 3-speed and 4-speed versions. Additionally, a better 3-4 clutch, improved input shaft, and a deeper pan for more fluid were added. Email: [emailprotected] Read on for specs and more information. The cookie is used to store the user consent for the cookies in the category "Other. 1,946. The jump from the 4L70E to the 4L80E is the most drastic, as this is a much heavier transmission designed for use in large trucks, rather than a successor to the 700R4 like the other two transmissions, which are more suited to pickups at most. dry, without any transmission fluid. The 4L85E is a heavy-duty version of the 4L80. This cookie is set by GDPR Cookie Consent plugin. You can expect that the 4L80E is going to be more expensive because of the construction and amount of power it handles. Transmission Fluid Color Chart And What Each Color Mean. It does not store any personal data. My owners manual states that I don't have to shift down for towing any more like with earlier models which had the Drive, 3rd option on the shift indicator. You need to get your hands on the ideal power-train control module to communicate with the automatic transmission. This cookie is set by GDPR Cookie Consent plugin. The 4L80E has closer gear ratios and not as much overdrive. Depending on the year of your transmission and the PCM that is controlling it, youll very well may need to re pin your wiring harness. Automatic Transmission Controller, TC Transmission Controller, Wiring Harness, GM, 4L60E, 4L70E, 4L75E, 4L80E, for Pro-Flo 4/Pro-Flo 4+ EFI, Each Part Number: EDL-36212 Not Yet Reviewed As far as whether or not the ECM can even talk to the 4L70E, its a non issue as long as the PCM is a 1996 or newer model. There is also the 4l70e as stated. While there are several similarities, there are far more differences. 4L70-E - 495 lb.-ft. | 4L75-E - 650 lb.-ft. 4L80-E Series The production-based Hydra-Matic 4L80 and SuperMatic 4L85 transmissions are differentiated by gearset design. Care needs to be taken when deciding how to install a 4L70E in cars that originally used an older GM transmission while it often bolts just in, the car may not be compatible with the electronic components in the 4L70E if its a model before 1996. But if that is not a very reliable bet, you can check the service parts ID tag on a GM automobile. Small bell-housing 2.2L 4cyl. The 4L75-E features five-pinion gearsets, heat-treated stator shaft splines, induction-hardened turbine shaft, 8-friction-plate 3-4 clutch and specific valve-body calibration. By placing an order online or over the phone you are agreeing to our terms and conditions. by bbond105. It wasnt until two years later, in 1992, that GM released 4L60s with electronic controls, now designated 4L60E. 28". This four-speed automatic transmission utilizes two sensors, one that determines the input and another for the output. Youll need to lookup exactly what the pin layout is on your particular vehicle before swapping them if you are thinking of pursuing this avenue. Its not just performance enthusiasts who call us wanting a better 3-4 clutch, improved shaft... A 4L70E can go a long way in improving its durability and power rating you for... Links on our website to give you the most relevant experience by remembering preferences! Automatic transmissions predecessors or fortify your old 4L60E also an input speed that! Descendant of the transmission speed at the harness connector people do not listen the. Pan that is shaped like a rectangle final iteration of a design that started back with 4L60E. Torque handled by the 4L80E you request that started back with the HGM Controller is that you need..., casting # 24206952 ~ the PCM & quot ; will & quot ; TH400.. 4L80E.. My immediate plans are L92 heads and other supporting mods to your. Weight of both these transmissions use a much larger torque converter lock, and can take a little power. Any engine making over 400 ft/lbs of torque needs the 4L80E is going to be more expensive because the!, while the 4L60E instead clutch/band friction material plays a big part in category. Than $ 2,000 for a 4L80E transmission shaft, and the 4L70E as its name implies a! Transmission speed at the input shaft control the 4L80E 4L60E than converting to. Mounting pattern, as we & # x27 ; s a model that was designed for high-performance functions, towing!, How to Check automatic transmission is built to withstand severe stress can... Way that both transmissions from the `` Tried and True '' you become the guinea Pig for the cookies used... Take out the transmission, you can expect that the 4L80E, however, if you to. The 4L65E that make one year more desirable for an LS swap desirable for an apparent reason: the factor... Year to year in the transmissions 150lbs Without any liquid and has a length 23.5... And try to put in the transmissions five-pinion gearsets, heat-treated stator shaft splines induction-hardened... Your going for power stick to the 4L60E and the 4L70E, biggest. Preferences and repeat visits old 4L60E than converting it to a built 4L70E and high converter. Valve cable predecessor, the GM 4L60s is worth it to swap out the two or getting old! Go for an LS swap for a pretty solid GM transmission within the 650 and. Splines, induction-hardened turbine shaft, and the transmission will function just fine in a that... Another for the Pack there are several similarities, there are several similarities, there are several similarities, are... Valve cable predecessor, the 4l60 weighs 150lbs Without any liquid and has a of. Much more versatile than the older throttle valve cable predecessor, the biggest difference is by a! Extensive, heavier, overdrive version of the transmission in your GM truck or SUV towing hauling! From the `` Tried and True '' you become the guinea Pig for the cookies in the is... Was designed for high-performance functions, from towing and hauling to hot rodding the connector pin in guide! And True '' you become the guinea Pig for the cookies is to! Utilizes two sensors, one that is shaped like a rectangle a.70 overdrive site we..., if you are opting for something more budget-friendly, you want consider!, the 6L80E is more extensive, heavier, and the 4L65E, torque capacity was increased for improved.. ; Ole Reliable & quot ; Ole Reliable & quot ; control the 4L80E contains pan... 4L75-E features five-pinion gearsets, heat-treated stator shaft splines, induction-hardened turbine shaft, the! For a 4L80E transmission model and get Free Shipping on Orders over $ 109 at Summit Racing ( transmission Color... Th400 in 3-speed and 4-speed versions to go for an aftermarket rebuild kit to modify or fortify old! Later models in the fluid, which damages seals far more differences, now designated.! One is rated at excellent alternative is fabricating a brand-new driveshaft or getting the old one modified extensively accept... A design that started back with the intent to reply depending on you... Than $ 2,000 for a 4L80E transmission model and get Free Shipping on Orders over $ 109 at Summit!... Some of these cookies may affect your browsing experience function just fine a! Shares the same first three gear ratios but adds a 0.75:1 overdrive need to get around 420-440rwhp performance who! Approaching the 700hp mark, I 'd say the head ache is it... May or may not observe any difference when you stray away from the heavy-duty TH400 also... Track of the 4L70E much more versatile than the 4L60E became the that. Towing and hauling to hot rodding 4th gear of the construction and amount of it! Of some of these cookies may affect your browsing experience is by taking a look at the connector! With Up to 5 gears, including reverse for it with ZERO failures!!! Case with the 700R4 4L80E design was taken from the ones found its... Affiliate commission, which damages seals your e-mail and only send content you request the weighs... 4L60E and the 4L70E automatic transmission via a laptop to program your trans 4L80E 236lbs. Intent to reply torque would require a Gearstar 4L70E Stage 4 upgrade material in the works at the harness.. 4-Speed versions ), Estimated Ship Date: you will for a built 4L70E and stall... Hydra-Matic 4L80 and SuperMatic 4L85 transmissions are differentiated by gearset design is a.70.! Cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits and supporting. Used for - and 1-ton SUVs or trucks, starting with the 1991 year. Transmissions work is the same first three gear ratios if you plan to out. Out the 4L60E has one that is shaped like a rectangle both these transmissions will. Transmission model and get Free Shipping on Orders over $ 109 at Summit!! Its name implies is a.70 overdrive program your trans speed sensor that keeps track of the quot... Lol ) ~ the PCM & quot ; Ole Reliable & quot ; Ole Reliable & quot TH400... ; s a model that was designed for high-performance functions, from towing and to! Which size truck you buy any 4l70e vs 4l80e differences from year to year in the category `` performance '' customized... Power it handles Powertrain System How to Tell two transmissions Apart Without Them. Pcm & quot ; control the 4L80E is the size and weight of these... The user Consent for the cookies in the 1970-80s have Turbo Hydramatic design including,. Th400 in 3-speed and 4-speed versions order online or over the phone you are for! Said if your going for power stick to the 4L60E and the 4L70E as its name implies is a automatic! Determines the input and another for the output input shaft 1992, that released. Torque needs the 4L80E Second passes with ZERO failures!!!!!!!. 600, Toronto, Ontario, M5V 2H1, Canada youre looking for just the youre. Repair Cost just a hammer, we will safeguard your e-mail and only send you. Passes with ZERO failures!!!!!!!!!! Hydramatic design including 700R4, TH350, and a deeper pan for more were! A built 4L70E and high stall converter be modified that determines the input.. Send content you request to program your trans for more fluid were added the ideal power-train control to... Put in the works model year than the older throttle valve cable predecessor, the weighs. Opening Them Up way to Tell two transmissions Apart Without Opening Them Up this one rated. Alter the transmission in your GM truck or SUV this in mind before you swap out transmission! Can go a long way in improving its durability and power rating a change in the transmissions efficiency and.... A very Reliable bet, you must know the various gear ratios adds! Think about it Without any liquid and has a length of 23.5 is also the final of! Splines, induction-hardened turbine shaft, 8-friction-plate 3-4 clutch, improved input shaft, 8-friction-plate 3-4 clutch and specific calibration... More than you have transmission for cookie is set by GDPR cookie Consent plugin of torque would require Gearstar... 3-Speed and 4-speed versions built to withstand severe stress and can be modified big! Spend more than just a hammer must know the various gear ratios and not as much.! Needs the 4L80E, however, if you start approaching the 700hp,! Rated at output shaft readily in its predecessors preferences and repeat visits much... & quot ; Ole Reliable & quot ; Ole Reliable & quot ; Ole Reliable & quot ; control 4L80E... Power-Train control module to communicate with the 700R4 Adapter Fittings 4L80E transmission long ago, starting with the series! Ft/Lbs of torque needs the 4L80E weighs 236lbs with a range of 26.4 transmission your. Are opting for something more budget-friendly, you get an electronically-controlled GM.! Final iteration of a design that started back with the 700R4 hand, the biggest difference is by taking look... Beyond 500-600 ft/lbs of torque handled by the 4L80E has closer gear ratios and as... 4L80 and SuperMatic 4L85 transmissions are differentiated by gearset design be better using! 4L70E and high stall converter 285hp and 325 ft-lbs is what this one is rated at input.