The General Motors 700R4 and 4L60E transmissions have some key differences in their design. You can use those differences to ...

Imagine a late-model, high-tech automatic 4-speed trans with a lower first gear (3.06:1) than the obsolete 2-speed Powerslide, or even the 3-speed TH-350 or TH-400. Imagine the effect of a high-gear ...

General Motors' 4L60-E automatic transmission is one of the most popular transmissions ever built. It was initially designed to replace and modernize GM's older Turbo 700R4 — also known as the ...

The time had finally come for us to bust out one of our oldest projects—to take our long abandoned '69 Chevy C10 off of the back burner and get it back on the road. While the suspension was previously ...

Poor reliability is a car problem that isn't as prevalent as it used to be. Automatic transmissions were among the worst offenders, with some going from smoothly shifting between gears while ...