The 4L60E transmission is the General Motors successful continuation of the ever improving 700R4. The 4L60E transmission is an automatic shift with longitudinally positioned transmission. From name it can be known that the 4L60E transmission where E stands for electronically shift controlled version. The engineering work that has been done in this system is not regarding the complication, instead an genuine way to simplify and further improvement to this transmission. As this transmission has the four speed overdrive with automatic shift and longitudinally positioned transmission.

The specification of the latest 4L60E transmission has a three piece case made up of aluminium alloy. It consists of bell housing, main case and tail housing. The package that is provided by Gm has been shortened to 21.9 inches long which will be equivalent to a manual transmission of 15.4 inches long. The strength of the 4L60E transmission has turned out to be excellent. The two wheel drive versions have tail housings and typically a long output shafts than a four wheel drive versions. The four wheel drive versions have various adapter assemblies and a shorter output shaft. The Novak can carry a full line of parts for the 4L60E transmission which includes OEM grade and upgrade components for the individuals working on their transmissions. As the 4L60E transmission is controlled electronically by the PCM and its requisite wiring. It has an outstanding transfer case adaptability in most of the jeep cases. This 4L60E transmission makes an amazing conversion transmission due to its adaptability in most of the jeeps. The mechanical process that happens in the transmission power transmits core remained the same as its previous version, except that the valve body and actuation system for the clutches, bands etc. The 4L60E transmission has derived the designation from its specifications with four speeds, longitudinally positioned 6000 lbs. The interesting and advanced features on all versions of the four speeds automatic include an input shaft speed sensor, for more advanced transmission and engine control through the ECM. The input shaft that is present has 30 splines. The transmission has a square oil pan. The length and volume of the cooling circuit will vary and will require an additional amount. The transmission power that transmits core is remained same as in the previous version. A VSS is the Vehicle Speed Sensor which is used as the primary feedback sensor. This feedback sensor feeds the PCM or ECM the data to make shift decisions. It is more important that it is structurally sound. The one of the improvements or upgrades for this unit is what is called a shift upgrade or recalibration kit. The shift control transfer requires the more lubrication flow. The increased lubrication flow must be allowed to all the internal components which have the patterns of the valve body of the transmission for better quality shifts. The 4L60E transmission is single piece case or bell housing assembly. The one of the best automatic transmissions for cars and light duty trucks is the general motors’ 4L60E transmission.