1967-72 Chevy Truck 3/4 & 1 Ton with 11000 LB. Axle

1946-62 Chevy Truck 1-1/2 ton except 2 speed axle

1946-53 Chevy Truck 1-1/2 & 2 ton with 13000 LB or less axle

1976-80 Chevy Truck 1-1/2 & 2 ton with 11000 LB. & 13500 LB. axles

1973-80 GMC Truck 25 & 35 series with 11000 LB. axle

1967-72 GMC Truck H110 3500 & 4500

1967-76 GMC Truck H110 & H135 models 45-5500