1969-72 chevroletsuburban 1967-72 gmctruck 1967-72 gmcjimmy 1970-72 gmcsuburban ... reduce exhaust restriction and back pressure for increased horsepower and better ... fuel economy with 2-1/4 tailpipes complete ... horsepower by up to 18 improving fuel efficiency and low-end torque at the ... same time increases in fuel efficiency and horsepower are based on ... in-and-out flow mufflers to reduce back pressure and give that great low exhaust tone ... packed mufflers to help reduce back pressure and give that aggressive rumble you ... 5569 dualexhaust chevrolettruck 1967-72 gmctruck 1967-72 now for the first time you can ...
165 38-0421 chilton s chevy/gmc pickup manual information on engine ... overhaul emission controls fuel system chassis electrical drive train ... and wires have been installed apply pressure to the mounting bracket to change the ... bulb led bulb-amber screw washer nut gmctruck 1969-72 gmcsuburban 1969-72 chevy gmc ... 69-72 5 chevy gmc 69-72 5 chevy gmc 69-72 5 chevy gmc 69-72 5 chevy gmc 69- ... 7210 chevy gmc 69-7210 chevy gmc 69-7210 chevy gmc 69-72 5 12.44 3.69 1. ...