Product Description
3.73 RATIO 4WD 6.60L A
3.73 RATIO 4WD 6.60L A
SIERRA 2500 PICKUP 20-21 (front axle), 3.73 ratio (opt GT4)
SIERRA 3500 PICKUP 20-21 (front axle), 3.73 ratio (opt GT4)
SIERRA DENALI 2500 20-21 (front axle), 3.73 ratio (opt GT4)
SIERRA DENALI 3500 20-21 (front axle), 3.73 ratio (opt GT4)
SILVERADO 2500 PICKUP 20-21 (front axle), 3.73 ratio (opt GT4)
SILVERADO 3500 PICKUP 20-21 (front axle), 3.73 ratio (opt GT4)