Hooker Competition Headers are one of the best values on the market by offering premium header features at a great price. This header is a perfect fit for stock to mildly modified engines. This header fits 69–91 Blazer/Suburban/Jimmy/Carryall/Yukon/1–Ton Crew Cab (2WD), 63–87 1/2, 3/4 & 1 Ton Truck (2WD): 265–400