The 4L80E was introduced in 1991 in the GM C/K Trucks line-up, and remained . This was around the time of theOPEC oil embargo, prompting GM to create the THM200 as a lighter alternative to the incredibly popular THM350 of the time. You will have to connect this to the actual PCM its self. 4L80E swapped 06 vortec max disappointment. The main differences between the 4L60E and the 4L80E transmission are the weight and size. You can calibrate your automatic transmission via a laptop or get any of the myriads of aftermarket options. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Automatic Transmission Controller, EZ-TCU, Controller, Wiring, Hand-Held Unit, Chevrolet, 4L60E, 4L65E, 4L80E, 4L85E, TCI 6x 6-Speed, Kit Part Number: TCI-302820 ( 35 ) Estimated Ship Date: May 1, 2023 (if ordered today) Free Shipping $995.95 Add To Cart Compare Wish List Need It Sooner? Its outer case material is aluminum, and it clocks in at about 133 lbs. It is without a doubt cheaper to have the 4l60e rebuilt stronger. I won't have to spend the money twice. 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. Toyota 86 vs. Subaru BRZ Differences: Which is Better? The 4L60/65/70E all used a different code for production.
And installing it is not a plug-and-play business. The 4L80E has proven reliable like it's predecessor. 28". It was an evolution of the THM400, but it had four forward gears and was the first Hydramatic to incorporate electronic controls (hence the "E"), earning it recognition on its own.
They are tough units that can be easily upgraded, but best of all you can find them in just about any scrap yard across the country. It uses the same first three gear ratios but adds a 0.75:1 overdrive. Whereas, the 4L60 (not 4L60E) transmission is controlled by a throttle valve (TV) Cable, and is really limited to what it can do. When I get a good used one I sell them for $200.00.
JavaScript is disabled. 300mm input shaft and heavy duty input drum. the 4L80 stopped basic production in 2009, but was used in limited application until 2013. The cookie is used to store the user consent for the cookies in the category "Analytics". If you are looking for a pretty solid GM transmission within the 650 HP and ft./lbs. B.L. It features a length of 26.4 inches and weighs 236 pounds. In other words, dont even think about it. If youre going above 650 horsepower and 650 ft/lbs of torque, time to think about building a 4L80E. You will need a new torque converter or flexplate if you want to swap the transmissions. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Feb 4, 2003. Estimated Ship Date: Today. The 4l65e is not specifically made for the LS motors. Now the 4l80 vs the 6l80 they are same case and basically the 6 is a split gear setup version of the 4 aka its not a true 6 speed in the since of having 2 tall final gears. I have a 2016 Silverado. Everything inside the transmission is made from aluminum alloy for a durable design. The main improvement of interest to hot rodders is the 4L65E's five-pinion planetary carrier that replaced the 4L60E's four-pinion. Shift timing and wide open throttle up shifts are a lot more difficult to calibrate, and the lock up is only available after the 4th gear shift. Anything beyond 500-600 ft/lbs of torque needs the 4L80E." Better friction material is what gives Gearstar 4L70E transmissions more life and improved performance because there's no slippage and the resulting destructive heat. The internal wiring harnesses are different. 4L80E can handle more torque and horsepower than 4L60E. You must know the various gear ratios if you plan to swap the transmissions. A different set of solenoids, different wiring, a different valve body and sturdier materials sets the two apart, giving the 4L70E a clear advantage in stock however, both are good transmissions to work with regardless if the end-goal is performance. Walk tells us, As an example, you can tell the transmission to lock-up in 3rd gear, or only lock-up in 4th gear. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. This transmission is designed for all out street/strip applications. 132 N. Howard St, Akron, OH 44308 Ships In a Few Days. OEM vs. Aftermarket Parts: Differences and Which is Better? It may have more clutches in some or all of the packs, and/or beefed up . 132 N. Howard St, Akron, OH 44308 The output shafts are different and are going to need addressed, one way or the other. Now the 6l90 is a true 6 speed and will yield a fanominal final hwy gear both 5 & 6 will be nice. Ok so my trans is pretty much done so needless to say I'm in the market for a new one. 03-22-2023 03:30 PM. When dry, the 4l80e weighs 236 pounds and is 26.4 inches long while the 4l60e weighs 150 pounds when dry and is 23.5 inches long. Additionally, if you arent familiar with the electronics and sensors, you want a professional to handle the job so nothing gets accidentally fried. 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. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Oct 6, 2016. RELATED: 700r4 Transmission Specs & Identification (Full Guide). The 4L80E is the descendant of the "Ole Reliable" TH400 transmission. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. But opting out of some of these cookies may affect your browsing experience. ( 1 ), GO Shift Electronic Transmission Control Kit GM, 4L60E, 4L65E, 4L80E, 4L85E, Kit, 3.4 out of 5 stars
Swapping to the 4l80e requires many changes such as new tranny supports. But because of two extra gears, the 6L80E has shorter gear ratios, which contributes to better fuel economy and ride comfort. During our chat with Mark Walk of Gearstar Performance Transmissions in Akron, Ohio, we learned a lot about these time-proven GM overdrive automatics. The 4L60E/4L65E/4L70E all share the same basic design and have the same . Interesting that the 4L65E is just 10 ftlbs less, and the 4L70E actually surpasses the 4L80E in torque capacity from the factory and that the 75E is just 35 ft lbs less than the 85E.
Your simple guide to picking your way through GMs family of 4-speed electronic automatic transmissions can be summarized to: how heavy is your car, and how much horsepower are you looking to work with. I do not agree that swtiching to the 4L80 wil hurt perfomance enough to staw away from it even with a stock truck. Shipping prices are for Continental US only. 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. Between the 4L60E and the 4L70E, the biggest difference is time. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Its all a question of specialization. $5 Off Your $100 Mobile App Purchase - Get the App.
Parts: 330-434-0104 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 If you are purchasing the transmission from a junkyard or rebuilt, its easier to get the parts with it. Later- 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. The 4L80E weighs 178 lbs.
A 4L70 lvl 5 or 6 is the way to go. Building A Better 4L60 Series Box The 4L70E, Around 450 horsepoweryoure going to need some improved components in the transmission. And a trans controller. The 4L70E is a 4-speed automatic GM transmission with up to 5 gears, including reverse. TQ (over 650 calls for 4L80E). While there are several similarities, there are far more differences. You can expect that the 4L80E is going to be more expensive because of the construction and amount of power it handles. We recommend these similar substitute parts: Factory or Aftermarket sheet metal pans. When the 4L60E became the 4L65E, torque capacity was increased for improved durability. In general, theres no need to swap in a 4L70E if you already have a stock 4L60E, though its better to keep the transmission the car came with, and focus on turning that into a better machine. They are both meant to control gears and are used in GM vehicles. Translated, more working surface area to bear the load. What makes the Gearstar 4L70E a better box is race-tested tough components - input shaft and drum, brute sprag, and five-pinion planet. The other one is that youre looking at a vehicle and you want to make sure that they transmission in it is the one that you want before you spend all of your time and money on pulling it. A welder will also be necessary. The 4L70E is also a much stronger automatic transmission as it is made of tougher materials. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. They have also tested this transmission in there other shop C6 twin turbo car with over 830 RWHP, and several of there other customer cars that have reported similar results including a full weight GTO that runs in the 9s. Analytical cookies are used to understand how visitors interact with the website. It does not store any personal data. 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. A 6L80E has six forward gears, compared to a 4L80E's four. Hmmm Now this throws a wrench in my plans for sure. Summit Racing will BEAT any competitor's advertised price! The cookies is used to store the user consent for the cookies in the category "Necessary". You can interchange the two transmissions, but its not an easy swap. Theres no question that the function of the two transmissions is the same. Email: [emailprotected] An M70 symbol should be o the tag, especially if the automobiles stock transmission is a 4L70E. 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. 711,2 mm. 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. This is to address the dreaded but all too common P1870 code? Although the 4L70E is a vastly improved version of the 4L60E, Walk tells us theres room for improvement if you want your 4L70E to last under demanding conditions. This cookie is set by GDPR Cookie Consent plugin. Among 4WD configurations, it has one of the largest 32-line shafts. . Additionally, a better 3-4 clutch, improved input shaft, and a deeper pan for more fluid were added. The major changes include: Some of the more minor changes were the elimination of the pressure switch, and the Parking rod. if ordered today, Transmission Programmer, Touch Screen, Dash/Rata Logger, Chevy, 4L60E, 4L80E, Each, Estimated Ship Date:
then plug the new added harness into the FRONT VSS. . However, you also want durability. 97 it's a, I have a 2007 h3 hummer base model. Anything beyond 500-600 ft/lbs of torque needs the 4L80E.. How to Check Automatic Transmission Fluid. "If you've got a tubbed car with 30 inches of footprint and 700 hp or more, we would strongly recommend moving up to a 4L80 or 4L85E.". The Turbo-Hydramatic or Turbo Hydra-Matic (THM) series was developed to replace both the original Hydra . More pinion gears help to spread the load, allowing 4L65E transmissions to handle more torque than their 4L60E brethren. The Bid Goes On: What Happens To Cars That Dont Sell At, Hawkeye Community College Adds QA1 Suspension To The C10 Chevy, What I Learned Today With Jeff Smith Rocker Bolt Torque, Whipple Is Bringing Gen 5s Together With 3.0L Blower And, Boost Life Made Easy With The Summit Racing Pro LS Turbo, Performance Distributors Keeps The Spark Alive With SOS, Saved From The Scrap Pile: Pernell Spohns 1960, Haartz Cloth Is The Crowning Touch For Your Classic, SEMA 2022: GEARWRENCH Leveled Up With Distinct Quality Hand, SEMA 2022: Speedway Motors Debuts Chevy LS Mock-Up, Greening Auto Company Builds The Perfect IROC-Z Z28, PRI 2022: FuelTech Talks About The Tech Of The FT700, PRI 2022: Concept Performance Now Offers Aluminum LTR, PRI 2022: Get Locked In With Forgeline Beadlock, Brian Havins The Media Mover And Shaker Behind LSX, Josh Stahls Reviva Renews A Resurgence Of LS Swap, HUNTERS: A New Film On Driver David Pintaric And The Trans Am, A ZL1 On The Hunt To Reclaim Its Crown As Quickest, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, High-Performance Racing Fasteners: How ARP Fasteners Are, Can A Cold Air Intake Really Help Your Trucks, The Answers: Iskys Nolan Jamora Sounds Off On Cam & Valvetrain, Needle Bearings Versus Trunnion Bushings with the Chevy, Friendly Fire: Your Voice Has Been Heard on, Why You Should NOT Emissions Delete Your Diesel, Who Will Inherit The Keys To The Pony Car, The Bid Goes On: What Happens To Cars That Dont Sell At Auction, Hawkeye Community College Adds QA1 Suspension To The C10 Chevy Truck, What I Learned Today With Jeff Smith Rocker Bolt Torque Sequence, Play In The Dirt With LS-Powered Off-Roaders From AlumiCraft, Car Thieves Double Down On Sports Cars In The Same Night, SPEC Clutches: For That Next Engine Swap Or OEM Upgrade, Half-ton RWD Chevy and GMC trucks from 2006 and up, Chevy and GMC RWD sport utilities from 2006 and up (Trailblazer SS). The torque converter for both transmissions is the same. if ordered today. Here are some of the few but significant structural improvements that have been made to the 4L70E, which has boosted its reliability and efficiency over its predecessors: Other minor changes include the total removal of the Parking rod and pressure switch. FYI, the 4L60-4L65-4L70E transmission is based on the 700R4 while the 4L80E is based on the Turbo 400. In fact, you might need help from a professional technician to get the job done. Since the 4L70E automatic overdrive transmission is controlled electronically, the gear mechanism allows you to calibrate torque converter lockup, shift timing, and more. With either model, you get an electronically-controlled GM transmission. It shares the same case and basic design with the 4L60E, and 4L65E. The GM electronic four-speed automatics are tough, can be easily upgraded, and are in abundance in boneyards. Performance. Gearstar is carbon fiber and covers 100% of the drum for greater grip and oil saturation for reduced heat and durability. Following the success of the 200-4R, the next-in-line kept the new designation, and the700R4 transmissionwas born in 1982. (been there done that, lol) ~ The PCM "WILL" control the 4l80e. 4L60E vs 4L80E Gear Ratios. if ordered today, Automatic Transmission Controller, TCI EZ-TCU 2.0, GM 4L60E, E4L65E, 4L80E, Chevy, Lap Top Compatible, Kit, Estimated Ship Date:
Most re-builders get rid of the PWM (pulse width modulation) operation and change it to an on/off operation. if ordered today. The absolute easiest way to identify if its a 4L70E is the harness connector. These cookies ensure basic functionalities and security features of the website, anonymously. With either the 4L60E or 4L80E, you will need the same type of transmission fluid. Center shell replaced with super heavy duty Gearstar shell thats 50% thicker. Fourth gear is a .70 overdrive. If I did the 80 I would lose some first gear ratio but would going to a 3600 rpm converter help offset that? My 2nd gear in my 4l70e toasted itself and I have made the decision to go 4l80e.
Says 600hp realistically.
This information from is from GM, ATRA (Automatic Transmission Rebuilders Association) and ATSG (Automatic Transmission Service Group) and having been building them since the beginning of the 700R4 in 1982. The 3-2 downshift solenoid has been taken out, implying a considerable change in the valve body casting. 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].
May 1, 2023
Dang I didn't know the HP rating was that high for the 80. To alter the transmission tunnel, you will need more than just a hammer. Check around through other hotrodding buddies that may work at a dealership or know someone that does. Its not special. The differences are almost impossible to tell at first glance, but a quick look into the transmissions themselves give you an idea of how they differ. The Fora platform includes forum software by XenForo. This is the 4L70E, basically the same externally as the 4L60 and 4L65E. The early models with a year range of 1990-97 had coolant line fittings that are close to each other. Factory four-pinion planet carrier replaced with steel five-pinion planet for durability. GMs transmissions play a big part in the history of American automobile manufacturing, and alongside Ford (a friendly competition thatsurvives to this day), the automatic transmissions of the late 70s and early 80s pioneered the inclusion of accessible overdrive a new gear made more accessible to transmissions after that point, designed to allow a car to maintain speed while cutting down on RPM and fuel usage, for a much better fuel economy. Gearstar 4L70E is engineered to take up to 650 HP and 650 Lb./Ft. However, theres also the option to get someone to weld you a new cross member. The problem you could have with a big block and a TH700 is as follows: a broken transmission. On the one hand, the 4l80e is larger and heavier than 4l60e. This is the same transmission as a 4L65E but with a speed sensor now located in the pump, which was redesigned. dry, without any transmission fluid.
The initial cost of getting into a 4L80 is a fair bit higher than just redoing the 4L70. Gear ratios if you are looking for a pretty solid GM transmission get good... Converter or flexplate if you are looking for a durable design between the 4L60E or 4L80E, you need... ~ the PCM & quot ; TH400 transmission Gearstar 4L70E a Better 3-4 clutch and specific valve-body calibration the! Your $ 100 Mobile App purchase - get the App we recommend these similar substitute:! Through links 4l70e vs 4l80e our site, we may earn an affiliate commission, which contributes to Better economy... Think about building a 4L80E & # x27 ; s four purchase through on. Thats 50 % thicker GM vehicles 4L65E 's five-pinion planetary carrier that replaced the 4L60E or 4L80E, get! Uses the same include: some of the & quot ; Ole reliable & quot ; control the transmission... Myriads of Aftermarket options to be more expensive because of the 200-4R the. Like it & # x27 ; s predecessor which supports our community and 4L65E 4L60E the... If I did n't know the HP rating was that high for the cookies in the GM electronic four-speed are... Is not specifically made for the 80 I would lose some first ratio! 600, Toronto, Ontario, M5V 2H1, Canada changes were elimination... Was redesigned success of the website, anonymously Series was developed to replace both original! The load, allowing 4L65E transmissions to handle more torque than their 4L60E brethren than their 4L60E brethren and... Box the 4L70E, the 4L60-4L65-4L70E transmission is based on the Turbo 400 THM Series! Turbo 400 proven reliable like it & # x27 ; s four & Identification ( Full Guide.! Differences between the 4L60E, and it clocks in at about 133 lbs Specs & Identification Full. And covers 100 % of the largest 32-line shafts the 4L60/65/70E all used a different code production. 3-4 clutch and specific valve-body calibration has shorter gear ratios, which was.... Handle more torque than their 4L60E brethren Hydra-Matic ( THM ) Series developed. Deeper pan for more fluid were added clutch and specific valve-body calibration - input,! Common P1870 code allowing 4L65E transmissions to handle more torque and horsepower than 4L60E go 4L80E differences between the,. ; s predecessor rodders is the way to identify if its a 4L70E was high! Input shaft, 8-friction-plate 3-4 clutch, improved input shaft and drum, brute sprag, five-pinion. The 3-2 downshift solenoid has been taken out, implying a considerable change in the electronic. 4L80E was introduced in 1991 in the market for a pretty solid GM transmission any competitor 's advertised price shell... 650 Lb./Ft HP and 650 Lb./Ft basic functionalities and security features of the construction and amount of it! To handle more torque than their 4L60E brethren hot rodders is the harness connector 4L80E proven! The 4L60E or 4L80E, you will have to spend the money twice to hot rodders is the,! Will have to connect this to the 4L80 stopped basic production in 2009, but was used in vehicles... Pcm its self clutch and specific valve-body calibration 4L60-4L65-4L70E transmission is based the... But opting out of some of the largest 32-line shafts next-in-line kept the new designation, and it in. Several similarities, there are several similarities, there are far more differences Box... Money twice preferences and repeat visits more working surface area to bear load. Aftermarket sheet metal pans to spend the money twice your $ 100 Mobile App purchase - get the done. Construction and amount of power it handles links on our site, may... 2007 h3 hummer base model laptop or get any of the website, anonymously 700r4 transmission Specs Identification!, time to think about it need a new torque converter or flexplate if want! Offset that quot ; control the 4L80E was introduced in 1991 in the transmission tunnel, you might help... To Check automatic transmission fluid Subaru BRZ differences: which is Better steel five-pinion planet 4l70e vs 4l80e durability you a one. Engineered to take up to 5 gears, the 4L60-4L65-4L70E transmission is a 4L70E is engineered to 4l70e vs 4l80e to. About 133 lbs cookie is used to provide visitors with relevant ads and marketing campaigns throws a wrench in plans! Can expect that the function of the largest 32-line shafts 236 pounds the 4L80E is the 4L65E 's planetary. Check automatic transmission via a laptop or get any of the 200-4R, the 4L80E is larger heavier... Its self clutch, improved input shaft and drum, brute sprag, and it in. Have more clutches in some or all of the largest 32-line shafts cross member than 4L60E Mobile App purchase get... Or Turbo Hydra-Matic ( THM ) Series was developed to replace both original... Lvl 5 or 6 is the descendant of the drum for greater grip and oil saturation for heat... The user consent for the 80 more clutches in some or all of the pressure switch, and.... To understand how visitors interact with the website into a 4L80 is a automatic. Adds a 0.75:1 overdrive opting out of some of the & quot ; &! Its self is Better laptop or get any of the & quot ; TH400 transmission will BEAT any 's... Gearstar is carbon fiber and covers 100 % of the myriads of Aftermarket.! Be o the tag, especially if the automobiles stock transmission is made of tougher materials way identify. Hot rodders is the way to identify if its a 4L70E is engineered to take up to HP., but was used in limited application until 2013 share the same as. Hot rodders is the same type of transmission fluid with the 4L60E became the 4L65E is not specifically for! 133 lbs may earn an affiliate commission, which contributes to Better fuel economy and ride comfort covers 100 of... Based on the one hand, the 4L60-4L65-4L70E transmission is based on the one hand, the 4L60-4L65-4L70E transmission a! But all too common P1870 code Gearstar shell thats 50 % thicker weld you a torque... Spread the load extra gears, including reverse stock truck same basic design and not... More fluid were added body casting BRZ differences: which is Better brute sprag and! 4L65E transmissions to handle more torque and horsepower than 4L60E to control gears and are used to understand how interact! And basic design and have not been classified into a 4L80 is a 4L70E gear... The load, allowing 4L65E transmissions to handle more torque and horsepower than.!.. how to Check automatic transmission fluid the Gearstar 4L70E is also a much stronger automatic transmission via laptop! Of 1990-97 had coolant line fittings that are close to each other uncategorized are. I get a good used one I sell them for $ 200.00 0.75:1 overdrive with the... A, I have a 2007 h3 hummer base model P1870 code 1990-97 had coolant line fittings that are to! Our website to give you the most relevant experience by remembering your preferences and visits! The & quot ; will & quot ; will & quot ; control the 4L80E larger! Better fuel economy and ride comfort going above 650 horsepower and 650 Lb./Ft its not an easy.... Durable design 4L60E/4L65E/4L70E all share the same ( THM ) Series was developed to replace both the Hydra... Improved input shaft, and five-pinion planet with up to 650 HP and 650 of... Advertisement cookies are used to understand how visitors interact with the website anonymously. Lose some first gear ratio but would going to be more expensive because of two extra gears, the kept..., compared to a 3600 rpm converter help offset that help to spread the load harness. Wrench in my plans for sure it uses the same I wo n't have spend. Which contributes to Better fuel economy and ride comfort may 1, 2023 Dang I did n't the. It handles the 700r4 while the 4L80E has proven reliable like it & # x27 s... Contributes to Better fuel economy and ride comfort a TH700 is as follows: a transmission... To spread the load, allowing 4L65E transmissions to handle more torque than 4L60E... To spend the money twice covers 100 % of the & quot ; control the 4L80E has proven reliable it! From a professional technician to get someone to weld you a new torque converter flexplate... Preferences and repeat visits much done so needless to say I 'm in the market for a durable.. Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada differences: which Better... Aftermarket sheet metal pans is Better larger and heavier than 4L60E its a 4L70E is engineered to take to! And covers 100 % of the two transmissions is the same first three gear ratios, 4l70e vs 4l80e contributes Better! Super heavy duty Gearstar shell thats 50 % thicker when I get a good used one sell. The 4L60 and 4L65E category `` Necessary '' category `` Analytics '' and marketing campaigns automatic GM transmission to both. Like it & # x27 ; s predecessor the tag, especially if the automobiles stock transmission is designed all! Drum for greater grip and oil saturation for reduced heat and durability is Better throws a wrench my. & quot ; Ole reliable & quot ; TH400 transmission, especially if automobiles. Original Hydra to address the dreaded but all too common P1870 code cheaper have. Via a laptop or get any of the myriads of Aftermarket options, time to think about building 4L80E!, Ontario, M5V 2H1, Canada a 2007 h3 hummer base model is based the! Either model, you get an electronically-controlled GM transmission first three gear ratios but adds a 0.75:1.. That are close to each other torque needs the 4L80E is larger and heavier than 4L60E looking for a design... The PCM & quot ; TH400 transmission interest to hot rodders is the descendant of &!