You get a quality Performance Automatic transmission built by Performance Automatic is known for their GM transmissions for street and strip use. You can choose a Powerglide, TH350, TH400, 700R4 or a 2004R. Any of these transmissions are a good choice, depending on your application. The ...
The 4L60E's principal feature is a 30% overdrive. It also sports a low first gear ratio of 3.06:1 for improved acceleration 'off the line'. These transmissions are quite strong and reliable. Earlier models can be improved by the stock upgrades, and can be greatly improved with many afte...