Make sure these gears will fit your application. GM 12 Bolt: Gear set 4.11 Ratio Chevelle, GTO, Cutlass, or other GM applications will work with series 3 or 4 carrier.
Gears, GM 12 Bolt differential, 4.11 ratio, Motive/Strange 8620 forged steel
GM 12 bolt Full Steel Spool for series 4 car cases only
GM 12-Bolt Chevy CAR / TRUCK Ring Gear Spacer Plate w/ Bolts - 12P 12T - 902A
NEW LIGHTWEIGHT FULL SPOOL,GM 12 BOLT,8.875",STEEL,30 SPLINE
Motive Gear R12CRMK, Kit Fits Gm 12 Bolt Bearing Kit Performance Racing Parts
Strange MARK WILLIAMS MOROSO Race Spool - GM 12-Bolt 6 SERIES 44 SPLINE
