I disagree with 53 moneypit on retreads. your buying a tire that has already been wore out once.When they blow they can tear up anything nearby. Everytime a tire sales man talks my boss into trying a new process cap we wind up sitting on the side of the road waiting for road service, fixing lights, mud flaps etc. they take out not to mention if the tire pieces hit another vehicle. The current truck I drive is a lease deal all they run on drives are recaps. blew 4 of the first 8 and 2 so far of the second 8.