I replaced both 3 yrs ago and have barely put 15k on the truck since then. I don't do any off roading with it and is 3/4 highway driven. I do have a set of 20s that I put on during the summer but I doubt the bigger wheels could be causing it. What brand or fix is everyone using? THese parts are kinda spendy at 100 bucks a pop. I'd like to do it once and be done with it.