Squealing serpentine belt?

This is a constant battle with all my 3rd gens. Since all my trucks are pretty much the same, I buy the Oreileys lifetime warranty parts and all the trucks are covered forever. :evil

I tried replacing belts, they would stop the squeak for a couple months, then come right back. It is usually the alternator or tensioner that fixes it. I just swap chit out until it stops.

One thing I found recently is you can buy just the tensioner pulley for $15 from RockAuto. I bought a couple just to keep around.

Dayco# 89094
 
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