GM's 4L80E overdrive automatic is the latest in a continuing legacy of rugged Turbo-Hydramatic transmissions from Chevrolet. Fifty years ago, the TH350 and the TH400 transmissions were a new ...
The 4L60E and 4L80E use different converters, and choosing the right stall speed and lockup characteristics can transform how a vehicle drives. Performance-focused owners often opt for higher-stall ...