Replacing the bearings within the idler pulleys and tensioner pulley will conserve you a bit $$ which is natural environment welcoming. Regretably, Toyota does not provide substitute bearings; You must buy the pulley having an mounted bearing, or for that tensioner, you're forced to invest in your complete assembly. Here https://begindirectory.com/listings13210987/detailed-notes-on-bill-collection-services-in-anaheim