Was working on my OBA setup today and got a new belt for the AC and damn, is it supposed to be as tight as it is. I can't even get it on main crank/compressor pulleys, don't even mention the tensioner, what's up? Is it supposed to be this frickin tight? It had one on there 3 years ago when I rebuilt the motor, threw away the old one back then. I don't have the air pump and that belt is 11" longer than the non air pump one that I need, so way too long. Anyone have a part number or length of one that works? On the plus side, rewired the A/C switch so the compressor will engage using the stock switch, just have to throw the correct pressure switch inline when I get it.

 

Part #17351 at Autozone.
0.531 inch. Top Width 35.000 inch. Effective Length

 

Thanks aalan. Both napa and schucks say 17345 was the size I needed, way too small. I ended up, after 4 trips back and forth to napa with napa part number 9350. Fits like a champ, easy to get on, midway through the tensioner for tension.