GMC G25 Auto Trans Control Units

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

Check out these tips on T-5 transmissions!

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.

In this Tech Tip, John responds to a customer question about tubular control arms.

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

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

Steve takes us along as he centers the 525 manual steering gear he is using for his Laguna.