I am beginning to hate this on board air system. Current issue is my belt, it is to short. Hoping someone else has done the same thing as me so I do not have to guess at what size belt I need. 350 TBI, 91 V2500 Burb, I removed my factory compressor, am using a Kilby mounting plate for The York. Belt is way to short to wrap around the larger pulley of The York, then the Harrison Compressor I had previously. Any help with belt sizes or numbers would be greatly appreciated. And I thought this was going to be one of the easier mods that could be done, nothing but problems so far .