The 4L60e is surely an automatic shift, four-speed overdrive, longitudinally positioned transmission. Now it is regarded as the top rendition with the finest overdrive computerized transmission ever created.
Historical past In advance of the Late 4L60e transmission, there was the Turbo 700R, which was introduced in 1982. The 4L60e is GM's thriving continuation in the ever-improving 700R4 (aka "4L60" considering the fact that 1990), launched in 1982. The 4L60-E may be the electronically shift controlled version with the 4L60. The Late 4L60e was unveiled in 1997 in and fully phased into vast use as a result of GM by 1998 in each RWD automobile platforms (such as the C6 Corvette) and trucks in each 2wd and 4 wheel drive configurations.

Mechanically, the transmission's power transmitting core remained the very same as its predecessor, although the valve physique and actuation technique to the clutches, bands, and many others. is controlled by digital actuators and solenoids. A Auto Pace Sensor (VSS) is utilised as the essential feedback sensor, which feeds the PCM or ECM (vehicle powertrain laptop) the data to make shift judgements. The engineering of this method isn't regarded as a complication, but an elegant simplification and even more enhancement to this transmission. The 4L60-E derives its designation from its requirements: 4-speeds, Longitudinally positioned, 6000 lbs. GVW, Electronically managed, although the transmission sees manufacturing facility services in trucks as many as 8600 lbs.
The power on the 4L60-E has turned out to be amazing. Now a darling from the transmission making aftermarket, the 4L60-E is capable of transmitting amazing energy from both equally truck and effectiveness automobile apps.

The Late 4L60-E transmission has a a few piece case of forged aluminum alloy; bellhousing, most important situation, and tailhousing. GM shortened the package deal to 21.9" extended - equivalent to some handbook transmission of fifteen.4". The input shaft has 30 splines. The transmission generally has pinned flare & o-ring fittings about the passenger side for a cooling circuit. The transmission contains a square oil pan. The critical distinction in the Later 4L60-E (1997-2006) from the Early 4L60-E (1992-1997) or 4L60 (1990-1992) or 700R4 (1982-1989) may be the six-bolt "hex" back output or tailhousing / adapter routine. The prior types featured a four-bolt sq . bolt routine in the adapter or tailhousing. In addition, the removeable bellhousing can also be a different differentiating feature. Two-wheel-drive variants have tailhousings and typically a prolonged output shafts than four-wheel-drive versions, which have various adaptor assemblies as well as a reduced output shaft.

The actual transmission weighs in at 146 lbs dried out, and 162 wet. It takes 8.4 quarts (9.64" torque converter) or 11.4 quarts (11.81" torque converter) of Dextron III fluid, which the factory claims to get a lifetime fill. Deep pan versions require up to 14 quarts. Length and volume with the cooling circuit will vary and will require an further amount. The 4L60E is now concurrently manufactured along with its strengthened progenitors; the 4L65-E and the 4L70-E. They share most components and improvements collectively. The 4L65-E was introduced in 2001 as an HD edition of the 4L60-E. It features a stronger planetary and a strength-improved output shaft.