I have two sets of MII lower control arms. I bought 4 bushings , the first pair are 13 1/2" bolt to ball joint centers and the MII bushings worked fine . The second set are 12" centers and the bushings are too big!! Are these arms Pintos (71 to 73) I miked them at 1.375"+1.300 inside. I need replacement bushings cause I burned them out!!!!! Thanks for help Dave!