I’m trying to put back together a 1967 model 60 that I bought with a milk crate full of parts and I am trying to understand the pto and drive pulley assembly. The Main pulley is Keyed to the shaft but there is no set screw and with then clutch pulley on you can’t use the shaft center bolt to hold it on either so I guess it’s held only by the pto pulley which is a taper clutch. I think I see how the linkage works on this. Where I am confused is the pto lower pulley doesn’t seem to fit on the 7/8 motor shaft, it’s not far off it might go on with press fit but the way it appears to me is that it needs to slide up and down so a press fit can’t be the answer. If I look into it looks like it should go on about an inch before hitting a snap ring...can anyone shed some light on this for me?