Speedway Motors Auto Trans Dipsticks

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.

This new steel bellhousing from Speedway Motors is made for everyone who wants to run three pedals without spending a fortune or relying on a crusty original.

Speedway Motors, a manufacturer, retailer, and distributor of high-quality automotive parts and racing products, will introduce new racing products in their booth (#4101) at the 2025 PRI Show Dec. 11-13 in Indianapolis, Ind.

Speedway Motors created a new expansion tank for coolant or oil that is well hidden and mounts inside the fender or on the front of the core support. Watch this video to learn how to install the tank.

Pat talks about some of the LS engine mounts Speedway Motors has to offer.

Speedway Motors announced today they will debut new products and two new product lines in their booth (#23791) at the 2024 SEMA Show Nov. 5-8 in Las Vegas, Nev.

The team of hot rodders and racers at our machine shop, use high quality machines to build parts for your project. Watch this video of parts being manufactured right here in Lincoln, Nebraska.

Speedway Motors, a manufacturer, retailer, and distributor of high-quality automotive parts and racing products, will introduce a number of new products in their booth (#23791) at the 2025 SEMA Show Nov. 4-7 in Las Vegas, Nev.

The dyno at the Speedway Motors Racing Engine shop is always humming. We set up a camera in the cell to catch a few of the engines that have passed through the door recently.