49mm, ok, ok, it was dark and I was using a torch! Also, I'm getting on just a bit and my eyes are a bit dimActually it'll be 49mm if you happen to need to reference by size but thats the later smaller one that you should have on a 96 truck. You want the 1580mm belt.
That'll be ERR5911 then?
No penny, but I did try that the other day and it stayed the same or even made the noise a bit worse. I replaced the tensioner with a Dayco OEM one yesterday. Sounded the same. Found the rubber trapped in some of the pulley V's. Cleaned them out, Took off water pump and PAS pulleys, cleaned and put back on. Sounds a bit better today. Tried to get a new belt from local Independent, but they didn't have oneIs there a penny behind the tensioner? If so get a new tensioner and chuck the penny away. What happens is that the tensioner wears and the wheel gets pushed off to the side, moving the belt away from the block so it then rides up and shreds on the waterpump pulley. People stick the penny in so the tensioner is now in the right position but skewed across the belt and the belt whines and squeals like you woulnt beleive....