Part #(s): 12645695 ; 12645696 FITS THE FOLLOWING MAKES / MODELS:
SIERRA 2500 PICKUP 17-19 (AT), 6.6L
SIERRA 2500 PICKUP 20-21 diesel
SIERRA 2500 PICKUP 22 (AT), diesel
SIERRA 3500 PICKUP 17-19 (AT), 6.6L
SIERRA 3500 PICKUP 20-22 (AT), diesel
SIERRA DENALI 2500 17-18 (AT), 6.6L
SIERRA DENALI 2500 19 6.6L
SIERRA DENALI 2500 20-22 diesel
SIERRA DENALI 3500 17-19 (AT), 6.6L
SIERRA DENALI 3500 20-21 (AT), diesel
SIERRA DENALI 3500 22 diesel
SILVERADO 2500 PICKUP 17-19 (AT), 6.6L
SILVERADO 2500 PICKUP 20-22 (AT), diesel
SILVERADO 3500 PICKUP 17-18 (AT), 6.6L
SILVERADO 3500 PICKUP 19 6.6L
SILVERADO 3500 PICKUP 20-22 (AT), diesel