(1973-1991) Chevy/GMC 6″ Suspension Lift Kits PRESS RELEASE #43 Kits: 1977-1987 Chevy/GMC 1/2-Ton Truck 6″ Lift (#C19/C19N) from $599.95   view kit online 1973-1976 Chevy/GMC 1/2-Ton Truck 6″ Lift (#C20/C20N) from $599.95 view kit online 1988-1991 Chevy/GMC 1/2-Ton SUV 6″ Lift (#C21/C21N) from $599.95 view kit online 1977-1987 Chevy/GMC 3/4-Ton Truck 6″ Lift (#C22/C22N) from $599.95 view kit online 1973-1976 Chevy/GMC 3/4-Ton Truck 6″ Lift (#C23/C23N) from $599.95 view kit online 1988-1991 Chevy/GMC 3/4-Ton SUV 6″ Lift (#C24/C24N) from $599.95 view kit online Coldwater, MI– February 23, 2012 –Zone Offroad is proud to announce new suspension options for the ’73-87 Chevy/GMC