If you’re restoring a classic vehicle and want to use replacement parts that are made by original equipment manufacturers, Auburn Gear is your perfect source. We have manufactured limited slip differentials since 1955 (the first being for Cadillac) and have a much deeper history under our original name, Borg Warner, which opened for operations in the 1930s. Auburn is one of the few sources of truly original differentials for renovation enthusiasts. What’s more, we offer the ONLY aftermarket differentials that are manufactured 100% in America.