okay got a gear drive. the blower drive has red bushings, the shaft and hub to to the crank pulley have black bushings and they dont fit the blower hub, I have also the six pin input shaft that came on the drive and it has no bushings but the recieving holes are much bigger than either set up bushings. how many different sets of bushings are out there for these things? the crank flange and input shaft are from Alston and have the hard black bushings and the blower hub and out put shaft are from SCS and have the soft red ones. what gives?