2007 Chevrolet Silverado 1500 HD Classic Submodel: LT; 7,200 Lb. GVW; Bore: 51 mm; w/RPO Code JC4 (7,200 Lb. GVW, Power Brakes, Vacuum Boosted, 4 Wheel Disc); w/RPO Code JH2 (7,200 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc); Position: Front;.
