AVALANCHE 1500 07-08 Transmission; (next to battery). 4.8L,AT,TRANSMISSION, (RH ENGINE COM. ALLURE 06-09 Transmission; (lower air cleaner housing). COBALT 06-10 Transmission; (LH strut tower). SIERRA 1500 PICKUP 07 Transmission; (new style, smooth door skin), (next to battery). ).