20 GMC SIERRA 1500 REAR AXLE ASSEMBLY 9.5″ RING GEAR 3.23 RATIO
SIERRA 1500 PICKUP 19 new style (mirrors mount on door skin), 9.50″ ring gear, GM built (opt SU8), 3.23 ratio (opt GU5). SIERRA 1500 PICKUP 20-25 9.50″ ring gear, GM built (opt SU8), 3.23 ratio (opt GU5).