Don't want a Ford housing in your GM muscle car? Then follow this build for the ultimate 12-bolt housing for the street and strip. Everyone knows the Ford 9-inch is the ultimate rearend for ...

It was 1973, the last time we saw a brand-new 12-bolt rearend in a passenger car, and man, the things are fetching untouchable green at today's swap meets. Some have argued that GM's 12-bolt axle has ...

A fundamental part of any muscle car is a nice, strong rearend fitted with a limited slip or Posi unit. What good is it to make gobs of horsepower if you can only do one wheel burnouts or if the diff ...

It's built strong, lasts long, and hooks the tires so hard it's just plain wrong. This is a fair description of Detroit Locker's new Detroit Truetrac locking differential. Whether it's an 8.5-inch ...