The 4L60E Guide


The differences between 4L60 & 4L60e Transmission February 18, 2015


The vehicle technology is achieving ever so high progress. Never before in history have we had so perfect vehicles at our disposal for whenever we want, and all at a relatively cheap price. We have the modern technology to thank for this, and especially the process of globalization which has enabled car manufacturers from all over the world to connect with one another and with their potential customers. A car is a complex vehicle, and there are many parts that comprise the insides of a car. In order for it to work better and more effectively, it has to have high quality parts inside.

One of the most important bits is the transmission. And in this article we’ll review some of the differences between the two models of 4L60 and 4L60E Transmission. We’ll begin with a basic overview. The 4L60 transmission is in fact manufactured by the corporate giant General Motors. As such, it was available for use in a period of two years, from the year 1990, to the year of 1992. It was the first overdrive automatic transmission designed specifically for rear-wheel high performance application.  It was installed in the Pontiac Firebird, the Chevrolet Camaro, in the GM truck line, and in some Corvette applications.

The 4L60 designation means that the transmissions are four gears, which are longitudinally positioned. What the engine is capable of doing is to support a 5.000 LB GVWR, or gross vehicle weight rating. The difference between 4L60 and 4L60E is that the latter has proven its improved strength as compared to the original. This makes it possible for the 4L60E to be installed inside of application which are up to 8.600 LB GVWR.

What the letter “E” represents in the name 4L60E is electronic shift controlled variation. And this is to be found in the 4L60E transmission. This type of shift control is primarily handled by the computer system of the vehicle. The shift points are primarily based on throttle ranges, rpm, and a variety of other conditions.

As to the bolt configuration, we must mention that the rear output housing has configuration of a six-bolt pattern, for the late 4L60E models of transmission. The difference between the 4L60E and 4L60E here is that the 4L60 transmission has a configuration of a four bolt pattern. This is not a 100% distinction though, because the early 4L60E models of transmission, which are created from 1992 through to 1997 have four bolt patterns as well.

These are only some of the differences between the two models 4L60 and 4L60E transmission models. Though there are many little fine intricacies that are beyond the scope of this article. Though if you feel like you’re in need of additional information on the subject of the 4L60 and 4L60E transmission models, then we suggest that you check out the website at There you’ll find a book that you can buy on all of the intricacies and complexities of these models of transmission.


The differences between 4L60 & 4L60e Transmission

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The differences between 4L60 & 4L60e Transmission February 18, 2015