Macs have just discontinued their new reproduction model B water pumps. I bought one a few months ago and the front taper on the shaft was a little off on its angle and after an hour or so running the front pulley came loose and would not retighten. Contacted Macs and they eventually refunded my money. Had to send them photos of the pump shaft to prove their pump was poor quality. All a big waste of time especially the removal of the Headlight condutes, grille and radiator twice so as to unmount and remove the pump. Macs service and quality has slipped of recent times and I doubt that I will buy from them any more after having fairly good service from them over many years. I think Dave Renner is you best quality option but of course fairly pricey. He can supply all the pump parts you need even though they are not all listed, try him, great to deal with. Regards, Kevin.