Fits the following Vehicles:
- 1988-1990 GMC C3500 | C3500 CAB CHASSIS 135.5, C3500 CAB CHASSIS 159.9, C3500 EXTENDED CAB, C3500 REGULAR CAB | 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L
- 1985-1986 GMC C3500 | CAB CHASSIS 135.5, CAB CHASSIS 159.9, CREW CAB, REGULAR CAB | 6 Cyl 4.8L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L