On the other hand, there maximum shift speeds from the first to the second gear are 6,400 rpm. Analysts have also revealed that the 4L65E transmission can support about 20% more torque compared to the 4L60E. Also, the maximum gearbox torque for the 4L65E is 670 pound-feet. The power rating for a truck version is around 380 pound-feet of torque, which is almost 400 pound-feet of torque found in the car version. And if you’re willing to install this unit in your car, you should know that there are aftermarket sales of the transmission. These cars are not limited to the Chevrolet SSR, Chevrolet Silverado, GMC Sierra, GMC Yukon XL Denali, GMC Sierra Denali, Hummer H2 and Hummer H3. There’s also the usage of this transmission in GM trucks that rely on a 6.0-liter eight-cylinder gasoline engine. Today, this unit is also used in performance cars including GM Australia’s Holden Monaro and the Chevrolet Corvette.Īlso, the 2005-2006 Pontiac GTO relies on the 4L65E transmission and it was inspired by the Holden Monaro. GM trucks were the major users of the 4L65E transmission. Despite this, there are parts of this transmission that have been revamped with heavier-duty components. Additionally, the torque converter is fully converted by the bell housing which minimizes vibration.Īnother notable feature of the 4L65E is its induction-hardened turbine shaft and heat-treated stator shaft splines. This manufacturing process helps to increase the strength of its components. This transmission comes with large sun-shell gears, created from powdered metal. What’s more, the 4L65E features five-pinion planetary carriers. It’s gear ratios for the first gear, second gear, third gear, and fourth gear are 3.059-to-1, 1.625-to-1, 1-to-1, and 0.0696-to-1, respectively. The 4L65E transmission has a weight of 194.6 pounds. This rating is about 360 foot-pounds and as the torque goes higher, the stronger is the transmission. Over and above that, the 65 in this naming represents the rating of the vehicle’s torque at 65. This M32 naming makes reference to an older version of the 4L60E transmission. There are also cases where this unit is called the M32 transmission option. Hence, there are none that are non-electronically controlled.Īnd being electronically controlled makes for more precise shifting cues. This transmission may sometimes be called the 4L65 given that all the 4L65-type transmissions from General Motors are electronically controlled. In this case, its naming refers to a four-speed transmission that is longitudinally positioned and electronically controlled. The naming of the 4L65E transmission reveals its basic features. The specifications of the 4L65E transmission include: Nomenclature Some vehicles that featured the 4L65E transmission include: – Vehicles That Used the 4L65E Transmission The history of the 4L65E can also be tied to the 700R4 transmission that was designed in 1982. What’s more, the 4L65E and 4L60E are automatic transmissions and they were designed for rear-wheel-drive vehicles as a result of their longitudinal alignment. This transmission is an upgrade to the 4L60E and as such, it comes with heavy-duty components, which makes for better strength and performance. The Hydra-Matic 4L65E automatic transmission was designed by General Motors. Therefore, walk with us and we’ll show you what this transmission offers. The same can be said if you already own a 4L65E transmission, but want a good idea of what it features before working on the unit. It’s worth having these tips at the back of your hand, especially if you’re looking to get a ride that uses this transmission. Here’s an overview of the 4L65E transmission specs and updates to keep you informed of what this unit offers and subsequent upgrades to it.
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