Mercury Comet 700R4 Shifters and Control Modules

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.

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

How to replace sway bars in a Mercury Comet and the advantages that come with it.

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

Tech write-up and a video of a Lokar shifter install on an automatic transmission.

Learn about 'Speedy' Bill's passion for pedal cars and how that has been passed down through generations in the Smith family. Jess also explains the step by step process to assemble Speedway's Murray Comet style pedal car.

Speedway Motors employee Jess M. walks us through adding a little salt flat flair to her 1933 Ford coupe, by using moon discs and quarter turn fasteners.

After installing a new cam in a LQ4 6.0 motor, it is now time to swap the lifters. Follow this step by step guide on how to prep and install LS7 roller lifters.

Tips and tricks to pull the most from your GM 602/604 platform.