Rebuilt 4L80E Transmission: The Heavy-Duty Buyer’s Guide
The 4L80E is GM’s heavy-duty 4-speed automatic — the bigger, stronger sibling of the 4L60E. It went behind the 6.0L, 7.4L, and 8.1L engines in 2500 and 3500 trucks, full-size vans, and commercial vehicles. Where the 4L60E handles daily driving and light towing, the 4L80E was built for serious loads. When it finally goes — …
Rebuilt 4L80E Transmission: The Heavy-Duty Buyer’s Guide Read More »
