Cm 870 cry for help

[DDlighttruck]

I've checked and rechecked belts and pulleys. I've even gone as far to order in the correct alternator pulley for my engine serial number. I've also taken off the bracket where the tensioner mounts to a machine shop and had the mounting surface machined flat/square.

My belt used to walk and slowly chew itself off, then after I had the tensioner pad machined all was good for 4-5 months and the belt just grenaded driving along. I was using OEM belts, switched to Gates (which was the one that grenaded), now I'm going to switch to a Continental belt before winter.

That damper is a pricey sucker, but it's probably a lot cheaper than fixing it on the road. Was it hard to change out?