Fits Chevy 3 4 Ton Suburban C20 K20 Truck C25 K25 (73 76) 4" Rear Blocks 12030 Front Rear Brake 2 L L6 1971 49449 FBHB 2 L L6 1971 1980 Jeep CJ5 258 4 06 8 V 1966 1969 Mercury Comet 4 8 V 1975 Oldsmobile Custom Cruiser 4 4 Inch Lift Kit Rear Blocks Chevy GMC C20 K20 C25 K25 Truck (73 76) Year Make Model Submodel 1973 1974 GMC K25 K2500 Pickup Base 1973 1974 GMC K25 K2500 Suburban Base 1975 1976 Chevrolet K20 Suburban Custom Deluxe 1975 1976 Chevrolet K20 Suburban Scottsdale 1975 1976 Chevrolet K20 Suburban Silverado 1975 1976 Chevrolet K20 Cheyenne 1975 1976 Chevrolet K20 Custom Deluxe 1975 1976 Chevrolet K20 Scottsdale 1975 1976 Chevrolet K20 Silverado 1975 1976 GMC K25 Suburban Base 1975 1976 GMC K25 Suburban High Sierra 1975 1976 GMC K25 Suburban Sierra Classic 1975 1976 GMC K25 Suburban Sierra Grande 1975 1976 GMC K25 Base 1975 1976 GMC K25 High Sierra 1975 1976 GMC K25 Sierra Classic 1975 1976 GMC K25 Sierra Grande