The 4L80E is a descendent of the proven TH400 transmission design. It is very rugged, has much more potential for power capacity than any other overdrive transmission on the market. It has better power flow for big power applications, much more clutch capacity and apply area than the 4L60E.
What does the 80 mean in 4L80?
And the 80 in the 4L80E says the unit can support 8000 pounds of GVWR, whereas the 60 in 4L60E means the transmission can handle 6000 pounds of GVW. Over and above, the E in both names stands for a transmission that is electronically controlled.Jul 17, 2020