gear swap

Changing the gearing in your differential is one way to add serious performance to your vehicle, whether you’re looking for quicker launches for races or lower rpm for increased street-cruising fuel economy. In this short-and-sweet PowerBlock TV video featuring Summit Racing tech expert Carl Pritts, you’ll hear more about choosing gearing for your vehicle. Then

You’ve been working on lowering your elapsed times all season—bumping up horsepower here, tweaking the suspension there, and practicing your tail off at test and tune night—when you hit that proverbial brick wall. No matter what you do, your ETs won’t budge. What do you do? Try a rear axle gear swap. Changing the gear