Tell him to stay out of Chuck Holes. No really some peeps on here replace them every 50,000 as " maintenance " and I have a friend that has replaced the passenger side once and the drivers side twice and only has 85,000 on his truck. I on the other hand have not had to change mine yet. I did go to a truck junkyard and picked up a set off a 2005 with only 3800 miles on them. They cost me $125 ea.