B&M Truck Differentials

Comparing open diff vs limited slip vs locker differentials. Learn how each works, pros and cons, and which is best for your build.

The pros and cons of a welded diff vs open diff, plus what to know before learning how to weld your differential.

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

Learn what gear oils do for your differential and how to choose the best gear lubricant for your application's needs

A brief overview of the steps Speedway Motors takes to ensure you get a quality differential.

A short article explaining the main differences between open and limited slip differentials.

Here's our attempt to do the impossible: pick a favorite GM truck design!

In this Tech Tip, John answers a customer concerns about adding additional drop to his 1960-1972 Chevy truck.

Read how to lower the front of your 92-98 Chevy pickup using a DJM lowering kit. These tips are helpful for smooth completion.

Classic trucks are hot right now - so there's no surprise that there are plenty to be seen at #SEMA2019.