Replacing the bearings in the idler pulleys and tensioner pulley will conserve you a bit $$ and it is surroundings pleasant. Regretably, Toyota does not sell substitution bearings; You should buy the pulley with the mounted bearing, or with the tensioner, you will be pressured to acquire the entire assembly. https://links2directory.com/listings13193543/everything-about-debt-collection-service-in-anaheim