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my friends looking at a 82 jeep cj was just wondering how $$new rockers are and how hard it is to find parts for a jeep that old

If your changing rockers why not roller them and save some HP?
http://www.harlandsharp.com/images/AMC-Jeep%204.htm
Harland Sharp Roller Rockers (12), Part # S40096
For the AMC I6 258