Chevy/GMC 1/2 & 3/4 & 1-Ton 2WD & 4WD, 1975-1987 Chevy/GMC 1-Ton Crew Cab, 2WD & 4WD, 1988-1991 Blazer/Jimmy 2WD, 75-91 Blazer/Jimmy, 1975-1987
K5/Suburban 2WD & 4WD: 283-400,
Tube Size 1.5, Collector Size 3