Are you talking about at the back end of the spring towards the rear? use the stock leaf spring bushings. unless destroyed and replace it. I had to replace one but left the rest. As brad told me that bushing is old, beatup, and flexible so why not use it.. If you are talking about the shackle mount to the frame i personally used the whole sky kit. it was a good complete kit for a decent price. If you got the metal, time, and skills make your own.