Which rearend is better? GM’s time-proven 12-bolt or Ford’s popular 9-inch. Each has its advantages and disadvantages. The Ford 9-inch is heavier and eats up more power due to a disadvantage in pinion ...

The S2000 has earned a reputation for having a fragile rear end. A quick search on s2ki.com reveals countless differential housing failures, especially in cars with high-power turbocharged setups. To ...

Thanks to auburn gear, the chew 3-series 12-bolt posi is back! Chevy's beefy 12-bolt differential has always been the rearend of choice among Bow-Tie musclecar enthusiasts. Unfortunately, in recent ...

This basic exploded view of a typical four-pinion Ford factory Traction-Lok shows How all the parts fit together. Ford has used "'open" diffs, Detroit Lockers, and several types of clutch-type limited ...

This video details the restoration of a car's Limited Slip Differential (LSD). It covers the process of testing the clutch plate, draining and removing differential components, and addressing rust on ...