Hi DLavoie, post some pictures close-up of the data plate on the cable control unit and the blade which will help identify the make / model of the attachment. We have an extensive library here on the forum for members organized by the make / model. I can see that the winch component is a Hyster but I can't tell what the CCU part is. That data plate in the photo should be able to tell us. Once we have that information, we might be able to track down more information on it, including perhaps a parts catalog with that sheave you're looking for.

Nice machine! Looks like a LeTourneau unit. There’re now a few LeTourneau books in the Library. Hopefully it’s there. I’m interested in the short fuel tank. I shall look in the parts catalog to see if that was an option. Looks way shorter than my 2T!