2007 Chevrolet Silverado 1500 HD Classic Submodel: LT; 7200 Lb. GVW; Bore: 51 mm; w/RPO Code JC4 (7200 Lb. GVW; Power Brakes; Vacuum Boosted; 4 Wheel Disc); w/RPO Code JH2 (7200 Lb. GVW; Power Brakes; Hydraulically Boosted; 4 Wheel Disc) Position: Front;.
