I recently bought a set of body bushings at a swap meet and there are no directions with them. There seems to be 3 sizes..2 of them are the same diameter but of those 2, one is thicker than the other. the third bushing is a smaller diameter than the first two. the set I bought included the radiator support. I've read a ton of posts, but still can't seem to make heads or tails of which bushing goes where?