what are u deleting? aftermarket belt numbers are based off the length of the belt and number of ribs. so if your stock belt from gates is a k080900 (not sure if thats the stock length) that belt is an 8 rib 90" in circumference. so if you want one 2" shorter it would be a k080880, if such a length is availible. you can go to gates or goodyear belts web sites and look thru all the sizes they offer.