Bob's flying Z is crashing and burning........
Most limited slip differentials employ clutches (several different types) to force both drive wheels to turn at the same time. They also have the ability to "unlock" as the car goes around corners to permit the drive wheels to turn at independant rates. An old trick is to change the fluid and include the appropriate limited slip additive, do several tight turns going foreward and then do several tight turns while backing up. Sometimes this gets the clutches unstuck. If the clutches are worn beyond spec, this trick isn't going to work. You will need a rebuild if the unit is rebuildable. An eaton type uses clutch packs that can be replaced. The Auburn uses cones and cannot be rebuilt.... a completely new center section must be purchased.
Most limited slip differentials employ clutches (several different types) to force both drive wheels to turn at the same time. They also have the ability to "unlock" as the car goes around corners to permit the drive wheels to turn at independant rates. An old trick is to change the fluid and include the appropriate limited slip additive, do several tight turns going foreward and then do several tight turns while backing up. Sometimes this gets the clutches unstuck. If the clutches are worn beyond spec, this trick isn't going to work. You will need a rebuild if the unit is rebuildable. An eaton type uses clutch packs that can be replaced. The Auburn uses cones and cannot be rebuilt.... a completely new center section must be purchased.
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