Do not use anything when you are installing the bushings to try and make them go on easier. Even the slightest thing will act as a lubricant and make them wear out faster. Gleanerman is thinkin the same thing as I am. Make sure your shoe is in the middle of its stroke when you tighten everything down. If it isnt the stroke is too long in one direction and it will cause the bushing to turn on the shaft.
Matt
Matt