Anytime! I like reviving the old stuff, repowering it and fixing it up usually makes for a machine that works better than the flimsy stuff at the box store.
As for the pin I looked up that part number and seem to be getting shear bolts. My guess is there is some play in that shaft where the roll pin goes causing it to shear easier. If you rotate the wheels by hand while in neutral do you feel any binding?
https://www.ebay.com/itm/2945929145...d=link&campid=5337789113&toolid=20001&mkevt=1
No I didn't feel any binding when I rotate the wheels. The shaft might have a very little play in it. As old as it is I wouldn't doubt it. But the shear pin seems to drive in tight so I don't know.
If it happens again I'll try drilling it out to the next bigger size and put a bolt in it.
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