20 GMC SIERRA 1500 TRANSFER CASE ASSEMBLY 5.3L 4X4 4WD 84516157
SIERRA 1500 PICKUP 19 new style (mirrors mount on door skin), 10 speed transmission (opt MQB), 2 speed transfer case. SIERRA 1500 PICKUP 20-21 10 speed transmission (opt MQB), 2 speed transfer case. SIERRA 1500 PICKUP 22 10 speed transmission, classic style (VIN 8 or 9, 5th digit), 2 speed transfer case.