You can follow the owner's manual. However, two things. First, bounce the vehicle. If it takes more than three bounces before it stops, replace them. Other than that, different conditions cause them to wear at different times. Most people average around 40K before they need them, but that doesn't mean they can't last longer or go bad sooner.
Let me know if you have other questions, let me know.
Monday, October 26th, 2009 AT 11:21 AM