Changing the bearings inside the idler pulleys and tensioner pulley will help save you a bit $$ and is particularly ecosystem pleasant. Regretably, Toyota would not promote substitution bearings; You should purchase the pulley using an set up bearing, or for your tensioner, you're pressured to acquire the whole assembly. https://directoryprice.com/listings710613/credit-recovery-agency-in-anaheim-no-further-a-mystery