Valve Spring Lock, 2 Required Per Valve, Jeep CJ 1987-1990 YJ Wrangler w/ 4.2L Engine; 1981-1981 CJ-5 w/ 5.0L (V8-304) Engine; 1981-1981 CJ-7 w/ 5.0L (V8-304) Engine; 1981-1981 CJ-8 w/ 5.0L (V8-304) Engine; 1981-1983 CJ-5 w/ 4.2L (6-258) Engine w/o "VAM" Engine; 1981-1986 CJ-7 w/ 4.2L (6-258) Engine w/o "VAM" Engine; 1981-1986 CJ-8 w/ 4.2L (6-258) Engine w/o "VAM" Engine; 1981-1986 SJ, J-Series w/ 4.2L (6-258) Engine; 1981-1981 SJ, J-Series w/ 5.9L (V8-360) Engine;

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