The 4L80E is a truck automatic transmission that was introduced by GM in the early '90s. It basically uses many of the same internal components as the TH400 but has an overdrive Fourth gear and uses ...
Our 5,400-pound, 400hp 4x4 has chewed through no less than four 4L60E four-speed automatic transmissions in less than a decade. The failures have included: a smoked torque converter clutch, which ...
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4L60E vs 4L80E transmissions explained
The 4L60E and 4L80E are two of General Motors’ most discussed automatic transmissions, and the choice between them shapes how a truck, SUV, or LS swap behaves on the street and under heavy load. Both ...
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