My power steering pulley bearing has bit the dust. It makes a loud rattling now, so i'm pretty sure it won't be long until it bites the dust. Since i'm going through the trouble of replacing one bearing, i might as well replace them all. Here is my problem: where the hell can i order these bearings or at least a replacement pulley for the 3 belts? I know i can get a replacement a/c idler pulley but what about the rest? Any part numbers?

Another option is, my truck has the extended waranty, so i could pay the $50 deductible and let the dealer deal with it. Should i try that? think it will be covered? I'm hesitant to go to the dealer sionce they may give me crap about taking it offroad.