Think of the 4L65-E transmission as the Steve Austin of GM's automatic overdrives. It looks like a standard 4L60-E, but beneath the skin, standard parts were replaced with improved components."We can ...

Standard equipment in the F-car and a slew of other V-8-powered GM vehicles, the Hydramatic 4L60-E four-speed automatic transmission is a capable performer-to a point. In the last year or so, an ...