[george kujanski]

Make sure the belts are the correct width. Too narrow and thet ride at the bottom of the groove rather than the sides. They will certainly slip.

George

[propuckstopper]

Originally Posted by george kujanski

Make sure the belts are the correct width. Too narrow and thet ride at the bottom of the groove rather than the sides. They will certainly slip.

George

This is spot on. I had trouble with my 1968 GTO squealing the belts. I was always worried about proper tension, but never even considered belt width. My power steering belt should be .500 wide according to the 1969 Pontiac Parts Catalogue. I measured my Napa 25-7525 replacement belt (which Napa says is a proper fit) at .410 wide.

This squealing drove me crazy for awhile before I figured it out. The squealing would start about 3000 RPM.

Glad I got lucky on figuring this one out. I attached a picture here of the Napa belt before I removed it.