When I start the truck up it squeels pretty bad for about 5-10 seconds, only at startup though but it started doing it every now and again, now its about every time. Belts are fairly new so thinking I might have a bearing going south. On the two belts, there is no idler pulley right? so to slack off the belts the bottom slack is the bolt on the alt. and the top is the very top pulley with the adj. bolt correct? Only has 71k on it but if all the bearings feel tight I will just buy new belts, thanks for any help.