Leaf Spring Terror

I do not know which companies bushings you are using, but if they are like the PST ones I had, they send new main bolts also, problem I ran into was the metal sleeve from the original factory bushings did not fit in the poly bushing, and the new bolt left a gap that had to be filled. I used aluminum pop cans that I cut the tops and bottoms off of, and made a "sleeve" for the bolt to fit tightly into into in the bushing by wrapping the aluminum piece around the bolt and then test fitting and trimming away from the aluminum, until I had a very snug fit. Worked out well for me.

Just a few thoughts to try to help in case you run into the same problem.