Distributor Vacuum Advance, Vacuum Control Unit for Distributor #J3231915, Jeep CJ 1978-1978 CJ-5 w/ 4.2L (6-258) Engine Except California; 1978-1978 CJ-7 w/ 4.2L (6-258) Engine Except California; 1979-1979 CJ-5 w/ 3.8L (6-232) Engine; 1979-1979 CJ-7 w/ 3.8L (6-232) Engine; 1979-1979 CJ-5 w/ 4.2L (6-258) Engine w/ 2-Barrel Carburetor; 1979-1979 CJ-5 w/ 4.2L (6-258) Engine w/ 2-Barrel Carburetor;

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Call Overly's Offroad at 865-995-9800 for installation or help.