GMC C15 Cab & Chassis 4.1 (1975-09-01 - 1978-12-01)

GMC C15 Cab & Chassis 4.8 (1974-09-01 - 1978-12-01)

GMC C15 Cab & Chassis 5.7 (1975-09-01 - 1976-12-01)

GMC C15 Cab & Chassis 7.4 (1977-09-01 - 1978-12-01)

GMC C15 Cab & Chassis 5.0 (1978-09-01 - 1979-12-01)

GMC C15 Cab & Chassis 6.6 (1975-09-01 - 1976-12-01)

GMC C15 Cab & Chassis 5.7 D (1977-09-01 - 1978-12-01)

GMC C15 Cab & Chassis 5.7 (1975-09-01 - 1976-12-01)

GMC C15 Cab & Chassis 7.4 (1974-09-01 - 1976-12-01)