One of my belts are squeeling( not sure which one), the alternator belt seems a bit loose, but it cannot be made any tighter, it's been a while since I replaced it, wondering if it is possible for a belt to stretch to the point that it is to big.

 

I've seen some belts that stretch quite a bit.

I believe the stock fan/alternator belt is Bando. That's what I replaced mine with and it seems to be a good belt.
If your truck is still stock you can look up your correct belt size at http://bando.mycarparts.net/

I "think" the power steering and A/C belts are Mitsuba.
^ Strike that.

I think they (PS & A/C belt) are Mitsuboshi http://www.mblusa.com/online-catalogue/

 

Thanks Odin, I will look into the Brando belt and mitsuba

 

Might be the wrong belt on there .

Now belts do tend to stretch but most belts are worn out by the time you run out of adjustment most times.

Might have been the closest one they could get ??

 

I got a 1/2" shorter belt for the alternator/fan because even with a new belt I was out of adjustment on the slotted alternator bracket. Not sure why that happened with all stock parts, but it fixed my issue.

 

Thanks Arlin