My buddy finally got around to putting his 2.8 pulley on, but there seems to be a problem. He has the billet flow idler pulley set ( 2 100 mm 1 90 mm) and the belt will not fit. He has the Gatorback 4080735 and it seems to be about an inch too short, we have checked the numbers 100 times and they are correct. The belt will fit on the stock idlers but not the billet flow. The funny thing is that I am running the same set up with the same belt my belt fits tightly but it does fit. Any suggestions.