While changing gear boxes and trying to get the speedo to work ( no luck) I was under the car and noticed that the rear lower trailing arms (67 chevelle) were loose. The bushings are actually fair for being so old but the bolts had worked loose or were out and not tightened at one time or another. Any way enough rambling, the problem is that the holes in the frame where the bolts go that hold the trailing arms are egged shaped pretty bad. Didn't plan on all this work!! Any suggestions would be GREAT! Thanks Slime