All rights reserved. Other sensors, wiring harnesses and electronic equipment can also be different. 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. If you are looking for a particular transmission in stock GM automobiles, you can tell the 4L70E apart from the 4L65E without opening up both. One of the big benefits with the HGM Controller is that you dont need a laptop to program your trans. Walk commented. It shares the same case and basic design with the 4L60E, and 4L65E. As you can see from the ratios the 6l80 is damn close to the 4l80. California. Though they are not compatible directly with the 4L60E due to they make use of various torque converter and input shaft. This makes the first question more about torque converter selection. May 26, 2023 in typical configuration, (dry), versus the weight of a 4L60E/4L70E which maximally weighs about 140 lbs. 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. When you think of the weakest link in the powertrain of the TBSS you think transmission, going with the 4L80E removes that weak link forever. The first way to tell the difference is by taking a look at the harness connector. This is a custom order part. by bbond105. The cookie is used to store the user consent for the cookies in the category "Other. But opting out of some of these cookies may affect your browsing experience. We will safeguard your e-mail and only send content you request. I swapped my 2006 Sierra from a 4L60e to a 4L80e a few years ago and had hptuners do a segment swap and i added the wiring for the rear speed sensor etc so im familiar with the that swap. 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. 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]. Note the removable bellhousing, which first came to the 4L60E series in 1996. Electronic control transmissions are different from manual transmissions. 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. Now you have my curiosity as to if its a 4L70 or not. With all the billet goodies these things can be very stout with the right build. After intake, exhaust, a good tune, and (if I find some extra cash lying . As a comparison of cost, our PT4L80ESS transmission and 3000 stall converter sells to forum members for just $3535, no core required. Here is a more detailed list of the difference between the 4L60E and the 4L80E transmissions: With the model names so similar, you might think that these two automatic transmissions are similar, but they are actually quite different. The way that both transmissions work is the same. You'd be better off going with a TH350. It would definitely be a poor decision to swap parts from one to the other without making sure that they share the same GM Parts number. Modified transmissions are rated at "levels" from Two on up. dry. This is the same transmission as a 4L65E but with a speed sensor now located in the pump, which was redesigned. These also used a short stator front pump. You must keep this in mind before you swap out the two. Parts: 330-434-0104 . Alongside the 4L60E on one spectrum, and the 4L80E on the other, the 4L70E sits between two ends of spectrum of transmission needs. Jim Smart cut his teeth on automobiles in the 1970s with a passionate interest in Ford and Chrysler musclecars. Added and IMS switch. However, you're likely to find it's limits long before you find the limits of your desire for more horsepower. The basic 4L80E design was taken from the heavy-duty TH400. 285hp and 325 ft-lbs is what this one is rated at. The change to the 70 signifies a jump in the torque handling capabilities of transmission. The biggest give away is the top center bolt hole. The torque converter for both transmissions is the same. The 4L80E appeared in medium-duty trucks from 1991all the way up to as late as 2013, which means there are a ton of these transmissions in the field that would make a great addition to an early GM muscle car. The Fora platform includes forum software by XenForo. The Unique Differences Between the 4L70E and 4L60E. 5,395. Make sure it comes with everything required to make the swap. In comparison, the 4L60E can only handle up to 360 pound-feet of torque. Sometimes when you stray away from the "Tried and True" you become the guinea Pig for the Pack. You want your Gearstar unit to perform better. 4L60E vs 4L80E Gear Ratios. Every transmission is a custom build to order by the same technician. A Level Two can withstand up to 450 hp, Level Three up to 500 hp, and Level Four to 650 hp. The 4L70E and the 4L60E transmissions look very much alike, except for the differences in the internals. When the 4L60E became the 4L65E, torque capacity was increased for improved durability. These cookies ensure basic functionalities and security features of the website, anonymously. 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. On the one hand, the 4l80e is larger and heavier than 4l60e. 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. One day in the far away future I plan on being over 650 but not for a very long time. The 4L65E are selling for $500 up around here but its a gamble, rather put my money into a rebuild. if ordered today, Automatic Transmission Controllers, Controller, Harness, Software, Chevrolet, 4L80E/4L85E, Kit, Estimated Ship Date: To alter the transmission tunnel, you will need more than just a hammer. Plus I don't doubt ultimate's findings on the rpm level 7. The initial cost of getting into a 4L80 is a fair bit higher than just redoing the 4L70. Among the many things you should pay attention to, consider these vital parts. And the input shaft is about 300mm vs. 298mm on the 4L60E transmission. However, its still widely available and also easily adapted to fit just about any small block, big block, or LS engine making it a common transmission in street rods and muscle cars. Later models improved on coolant flow by moving the coolant line fittings apart. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. the wife: "If I could roll my eyes anymore right now at u, I would see my brain". Both transmissions require Dexron IV to run properly. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. 4L80e EARLY & LATE models learn the difference between the 2. There is an early and late variation on the 4L80E. You must know the various gear ratios if you plan to swap the transmissions. We have guys who call in with 350 horsepower cars who want a new 4L70E transmission just for the better shift quality. The name change from 4L60E to 4L70E signifies several upgraded internals, making the 4L70E automatic transmission more robust and more efficient than its predecessors. Says 600hp realistically. Heres whats found with the 4L60E: On the other hand, the 4L80E gear ratios are: You cant plug and play the two transmissions with each other, mainly because of the different electronics. Although it is improved, it shares the same stock case design with the 4L60E, and its close cousin the 4L65E. We recommend these similar substitute parts: 1 out of 5 stars While the differences between early production 700R4s and 4L60s exist, they are minor and mostly have to do with compatibility between the transmissions and various vehicles from the time. With either model, you get an electronically-controlled GM transmission. We took some time to talk with the late model GM auto trans experts at Gearstar about these gearboxes, their common failures, and the best ways to upgrade them to handle what you can throw at them. I disagree with the price issue. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The internal wiring harnesses are different. Kits & parts have a 15% restock/admin fee, if cancelled prior to shipping. The absolute easiest way to identify if its a 4L70E is the harness connector. Thats why it is paired with configurations that have a more powerful engine. The 4L80E has closer gear ratios and not as much overdrive. The IMS was internal and NSBU was external. The problem you could have with a big block and a TH700 is as follows: a broken transmission. if ordered today. Note (1) 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 TH2004R transmission. It must be straight for optimal performance. I would again have to speculate that the improvements in the 4L70E (see GM 4L70E product announcement attached) are why the GM engineers gave the 4L70E a higher torque specification over a stock 4L80E. Your software includes a "dashboard" window that shows (among other things) actual gear vs selected gear. Read on for specs and more information. 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? 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. 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. dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock, Including at a Supplier. This cookie is set by GDPR Cookie Consent plugin. Performance. 132 N. Howard St, Akron, OH 44308 $500 plus new GM front and rear carriers only. The cookie is used to store the user consent for the cookies in the category "Performance". The 4l80e has two VSS senors on the drivers side and the stock 4l60e only has one. 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. 4L70E indicate a higher capacity, than the 4L60E transmission. It has five total gears including reverse. then plug the new added harness into the FRONT VSS. 4L80E is larger and more durable than 4L60E. Its meant to be used with rear-wheel drive and it requires 8.4 quarts of fluid. Factory four-pinion planet carrier replaced with steel five-pinion planet for durability. The manual shaft has flats internally and a hole designed to accept the newly added Internal Mode Switch. Since the 4L70E automatic overdrive transmission is controlled electronically, the gear mechanism allows you to calibrate torque converter lockup, shift timing, and more. 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. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Fourth gear is a .70 overdrive. I think the extra gears and the taller overdrive would be nice but I wonder if it's worth all the effort. In fact, just dont do it. Most re-builders get rid of the PWM (pulse width modulation) operation and change it to an on/off operation. 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. May 10, 2023 Jun 15, 2023 The 6 speed takes a fair amount of trans tunnel work and my Holley Dominator ECU can't control it. * 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. We have built them for applications ranging from heavy towing vehicles to 1800+ HP street/strip cars. Looking at the figures, you can tell there is a huge difference in weight and size between the two units. These cookies will be stored in your browser only with your consent.
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