Hi I'm trying to find a tracking somth side pulley for my spring loaded tensoner. Right now i have a goodyear gatorback#49024 this works fine untill you hammer it down then it lets the belt track in and out then the belt slips off on the inside and ruins the belt. i put the powerdyne solid tensoner back on but i can only make 8 psi with it on and with the good year before it started acting up i was able to make 10psi plus some depending on the air temp. any help in finding a smoth side tracking pulley would be great. ive tryed to find a 2 3/4 in tracking pulley like the one i have but with the tracking sides but have been unable to find a match. Ive found a 2 1/2 inch march#740 but its really fance and it cost around $80 bucks and ill i want is a gatorback or something simmler in plastic thanks John