I just got my suspension lift today and was checking over the parts and noticed that the bushings for the springs are all the same size. The problem with that is that the bolts on the rear springs that go through the shackles are 9/16 and the front springs are 1/2". My RC is an 83 and I know that nothing has been changed from the factory. The lift I got is a 5 1/2 lift from superlift. If I dont use the sleeves that go through the bushings the bolts go through but no go with the sleeves on the rear. Is this common with ramchargers or is mine just different?