anybody fitted some to there car? since gettin the diff sorted shes trampin about abit at the rear. now my bushes are not too bad, but they wont last long at this rate. so thinkin of locking colars as there cheap and easy to fit, but have heard that sometimes they make the bushings wear out quicker? as they cut into them? couldnt be arsed to drop the subframe an fit pollies, anyone have them fitted? cheers guys!