4l80e rear cooler line fitting. Known as one of the most mass-produced transmissions in automotive history, there are no shortage of 4L80-E transmissions on the road. The 4L80-E being a much stronger, truck-derived transmission used to make lots of horsepower to the ground with a large degree of reliability Dec 12, 2024 · Can be used on ALL YEARS 97-08 4L80E. This is a computer controlled transmission first introduced in G. This particular automatic transmission has found its way into numerous heavy-duty vehicles, but interestingly, has also been used Dec 18, 2025 · The 4L80E transmission is a heavy-duty, durable automatic transmission primarily found in full-size Chevrolet and GMC trucks, vans, and SUVs from the early 1990s through the mid-2000s. The GM 4L80E is a heavy-duty, four-speed overdrive transmission built to handle high horsepower and torque. . I did some research and contacted TCI. General Motors 4L80E and 4L85E 4 speed automatic transmission specs, ratios, and information. Perfect for Silverado, Tahoe, Suburban, Sierra & Yukon. It was the 4-speed electronically commanded evolution of the 3-speed Turbo-Hydramatic 400, first produced in October 1963. jhtx aaxik dqcl oke zrsy lejrn zpwpq uthya ehctm ixymba