Dodge TH400 Modern Muscle Transmission Parts

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

The LS swap is no doubt still going strong, but if you’re planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, you’ll need to pay attention to a few items we discuss in this buyer’s guide.

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

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

Check out these tips on T-5 transmissions!

Speedway product guru Jeff K. wants to introduce you to another of his projects, "Elmer". There's a long history with Jeff and this vehicle, best told by Jeff himself.