DID U REPLACE A PS PUMP OR PUT A DIFFERANT AC CPOMPRESSOR ON IT ? THE DOUBLE ALTENATOR PULLEY IS MADE FOR THE RV2 AC COMPRESOR& HEY R FREON 12 ONLY I SUPECT U CHAGED SOMETHING THST WAS NOT OEM . THE AC& LTENATOR USE MATCHED BELTS SOMEHING CANT BY ANYMORE / U USE TO BUY THE BELTS...