| 1973 | Chevrolet | C30 Pickup | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1973 | Chevrolet | K30 Pickup | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1974 | Chevrolet | C30 Pickup | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1974 | Chevrolet | K30 Pickup | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1975 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1976 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1977 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1977 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1978 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1978 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1979 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1979 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1980 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1980 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1981 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1981 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1982 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1982 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1983 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1983 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1984 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1984 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1985 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1985 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1986 | Chevrolet | C30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1986 | Chevrolet | K30 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload contact springs, removal of contact overload springs may require U-bolt and center bolt replacement. |
| 1988 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1988 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1988 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1988 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1989 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1989 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1989 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1989 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1990 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1990 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1990 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1990 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1991 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1991 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1991 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1991 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1992 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1992 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1992 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1992 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1993 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1993 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1993 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1993 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1994 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1994 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1994 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1994 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1995 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1995 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1995 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1995 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1996 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1996 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1996 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1996 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1997 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1997 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1997 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1997 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1998 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1998 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1998 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1998 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1999 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1999 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1999 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 1999 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 2000 | GMC | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 2000 | Chevrolet | C3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 2000 | GMC | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |
| 2000 | Chevrolet | K3500 | Fits 2 Wheel Drive; Fits 4 Wheel Drive | Must remove factory overload springs. |