Fits Rear; Sierra 1500 HD; Bore: 54 mm
or Rear; Sierra 1500 Base Model; Bore: 54 mm; w/RPO Code JC5 (7,200 Lb. GVW, Power Brakes, Vacuum Boosted, 4 Wheel Disc)
2003
Fits Rear; Sierra 1500 Base Model; 6,400 Lb. GVW; Bore: 54 mm
or Rear; Sierra 1500 HD; Bore: 54 mm; w/o 4 Wheel Steering
2004
Rear; 6,400 Lb. GVW; Bore: 54 mm
2005
Fits Rear; Sierra 1500 Base Model; 6,400 Lb. GVW; Bore: 54 mm
or Rear; Sierra 1500 HD; 6,400 to 7,200 Lb. GVW; Bore: 54 mm
2006
Fits Rear; Sierra 1500 Base Model; 6,400 Lb. GVW; Bore: 54 mm
or Rear; Sierra 1500 HD; 6,400 to 7,200 Lb. GVW; Bore: 54 mm