Jeep XJ 4L70E Parts

This is more than the story of a vintage sprint car. It's also the story of how a dynamic duo of "Speedy" Bill Smith and Jan Opperman toppled giants at the 1976 Hulman Classic.

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 old sedan was untouchable in the early 60's.

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