Chevy Silverado 2500 HD 4L70E Transmission Parts

Speedway Motors and Classic Trucks reached out to Performance Automatic for a 4L70E to help move the 1952 Chevy Week to Wicked build in honor of Speedway Motors' 65th anniversary.

Day Three is in the books of the Speedway Motors Week to Wicked 1952 Chevy build. Progress today included putting the engine and tranny where they belong and continued work on the wiring.

A real-world guide to 4L60 transmission specs, strength, and swap tips.

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

Follow along as Jeff installs an early 700R4 transmission for the big block in his 1967 Chevelle. See how this unit is upgraded and converted to a later 30 spline style.

Day Four of the Speedway Motors Week to Wicked 1952 Chevy build starts off with a whole lot of wiring.

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

Learn about the G Force crossmember and how the symmetrical product design makes for a smooth installation on Jeff's 1967 Chevelle.