1955 Studebaker E7 700R4 Frame

The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Here's what you need to know about GM's famous 4-speed automatic.

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.

This slick grey 55 Chevy truck is as clean as they come, and there are more hidden details throughout than the subtle exterior would lead you to believe.

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

Originally purchased as a parts car Steve's '57 four-door hardtop is a true survivor that's been in the family for over 50 years.

To keep this project moving forward, Jeff installs a gear reduction mini starter on his big block. See how to apply the mini starter on 153 or 168 tooth flexplates.