This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Contact a mechanic who can build a transmission that will keep its die-cast aluminum frame and functionality for the long haul. The high performance has a reverence for power, reliability, and full control capability. General motor’s 4L80E transmission is a widely recognized option for driving fanatics who like maximizing the power of their car. The following are the options controllable with the 4L80E transmission: This setup means that the driver has the option of adjusting and reprogramming their units to their preferred settings. The electrical control aspect makes it different because it requires a controller, whereas the TH400 does not. It weighs more by 50 pounds because of all the electrical control components. The 4L80E transmission has a twenty-five percent overdrive and is four inches longer than the TH400. Critics warn about this move and prefer that one choose a qualified mechanic after learning of the similarities and differences between both units. Some mechanics advise that they can disassemble a TH400 transmission and rebuild it into a functional and competent 4L80E transmission. The mechanics will install after completing the construction and ascertaining that it delivers the desired results.The device will have a new torque converter and a solenoid.Gearstar will disassemble the unit and clean the parts before continuing with the rebuilding process.These parts get worn out faster than the rest and will always be a priority to a standard mechanic Rebuilding a transmission involves putting in parts such as seals, bands, gaskets, and the clutch.The replacement will not be as per the factory setting hence you can expect the services to be less pricey.You will only be replacing the failed parts of the device.What to expect with a rebuilt 4L80 transmission The positive implications of a rebuild transmission outweigh the perks of all other options in both monetary means and functionality. The purchase of a new one can be extremely high and would not have too many extra benefits different from purchasing a rebuilt tool. The easiest route is to buy a brand new one or a rebuilt from Gearstar. A replacement gets rid of bad parts and replaces them with pre-built factory parts. ![]() You can replace the transmission by remanufacturing it with the help of the original manufacturers. You are bound to find these 4L80E transmissions in many heavy-duty pieces of machinery, such as the following:Ī prospective owner of these transmissions has a couple of different ways they can go about acquiring them. The use of electronic 4L80s in non-trucks and SUVs began in 1991. The new manual shifting valve body has a high demand from clients who appreciate the elimination of the computer and excess wiring and electronics. The simple original 4L80 transmission can have easy conversion into a heavy-duty device for overdrive transmissions with a 4 x 4 horsepower. The versatility of the transmission allows it to be of use in several applications. Meticulous step-by-step photos of the rebuild process are featured along with torque specs and unique identification of all major and most minor components.The 4L80 is a manual transmission with a maximum engine input torque of 440 lb-ft. ![]() This detailed, step-by-step instructional manual is authored by racer and builder Eric McClellan. ![]() ![]() Upgrades that are available for the 4L80E, which is a popular topic among performance fans and transmission swappers, are also included. This book covers the process of identifying the best versions, tearing down the 4L80E, rebuilding, reassembly, and troubleshooting. While serving as the smaller, lighter cousin to the 4L85E, the abundance of 4L80E transmissions manufactured between 19 ensures that these highly capable 4-speed overdrive units will be in service for years to come.Īutomatic transmissions are often seen as mysterious and overly complicated, but much of the guesswork has been simplified to its basic elements in this easy-to-follow guide. Learn how to rebuild and modify the GM 4L80E transmission!Īs the successor to the venerable and popular Turbo Hydra-matic 400 (TH400), the 4L80E was the next flag bearer in GM’s line of automatic transmissions.
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