Why It Matters
Oldsmobile's limited-slip rear axle appears as Anti-Spin in earlier factory literature and Positraction in later references. It is tracked separately from generic GM axle records because ratio, stamping, and application evidence remain model- and year-specific.
Also Known As
Oldsmobile Positractionpositraction rear axle3.08 Positraction S53.91 Positraction T3Oldsmobile limited-slip rear axleOldsmobile Anti-Spin differentialG-80 Locking Type Anti-Spin DifferentialOldsmobile Model P Anti-Spin rear axle1964 Oldsmobile Anti-Spin cone-clutch differential1964 4-4-2 Anti-Spin axle1965 4-4-2 Anti-Spin axle1965 G80 Anti-Spin differential
