AC Street Shift Indicators

There are a lot of choices when it comes to automatic shifters, and we’ll help unpack all the options and features in our automatic shifter buyer’s guide

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

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.

Super Chevy features the Speedway exclusive Lokar Muscle Car Shifter Knob Adapter

How proportioning valves work, fixed vs adjustable valves explained, and how to reset a prop valve.

If you're considering upgrading your classic car's charging system with an generator to alternator conversion, here are some helpful tips.

This article explains how to install a chrome column shifter into the steering column itself. We will help you determine the length of steering column needed along with all the parts required to get the job done.

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

Learn how to install a side detent shifter in a 1969 Chevy C10.

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.