so are body lift pucks bad, I could see how hey could pose more of a problem than complete poly replacements, like from daystar. also i could see they wouldn't really work if you had old torn rubber bushings, but i just replaced mine with new ply ones 6 months ago, and now i want a 1" bl for a cj7, can i do pucks or for 20 dollars more should i do complete replacement bushings?