1964-1972 Skylark Pro+ Brake System Front 4301336FR valve-covers Stock rear springs are progressive

Stock rear springs are progressive whereas the Dinan springs are linear

13/8 V 1975 - 1976 GMC G25 Vandura 4/8 V 1975 - 1976 GMC G25 Vandura 4

6 V8 1977 - 1986 Chevrolet K20 Suburban 305/5 V8 1968 - 1973 GMC C15/C1500 Suburban 307/5 V8 1968 - 1973 GMC C25/C2500 Pickup 307/5 V8 1969 - 1974 GMC C15/C1500 Suburban 350/5

Year Make Model Submodel Engine Size 1946 - 1949 Jeep Willys CJ-2 1949 - 1953 Jeep Willys CJ-3 1945 Jeep Willys 1959 - 1966 Jeep CJ3 1951 - 1952 Willys 4-73 Sedan Delivery 1953 - 1955 Willys 4-75 Sedan Delivery

9375 in 2010 Chevy Silverado 1500 Rear 6400 lb

1964-1972 Skylark Pro+ Brake System Front 4301336FR valve-covers Stock rear springs are progressiveFits 1964 72 GM A Body, 67 69 F Body & 64 74 X Body Cars w OE Spindles (Also fits DSE, Heidt's, Fatman, Ridetech & L&H Drop Spindles) Features: 2 Piece, 6 Piston, 6P Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced Forged or Billet Aluminum Powder Coated Finish Stainless Steel Pistons, Abutments and Noise Suppression Clips Staggered Pistons to Minimize Uneven Pad Wear Dual Seals, Dust Weather & Pressure 2 Piece Slot, Drilled, Zinc