I've made some progress. Figures that the first quadrant I looked at had no dimple (left side). Both sides have a bar that attaches from the quadrant to the stationary frame rail, the left side has a bracket for the end of that rail also. That looks like it should hold. The linkage is something of a puzzle but there's not much point in going too far down that road because the tractor has the power lift option. I guess that is the reason for the 2 extra rockshaft support brackets and maybe the short link bars as well. That'll take a bit more experimenting, including something to hold up the end of the stationary frame on the other side. Is there a bracket for that like the one held on by the tube bolt on the left? Also I wonder if it might work better to leave the quadrant and just remove the lever?

It only has one spring. These are maybe used to hold the tines down? Or would they be for lift assist? With four short arms on the rockshafts it looks like they could go either way. Guess I'll need to get another spring if I can't find the missing one over Christmas. I'm pretty sure the missing bracket was never there as it wasn't on the bolt.

So, I get that part done and I'll be close to setting the tines. I know I have at least one broken bracket which could possibly be welded, and apparently a bunch of missing blades but no big hurry on that as I've got to rebuild the carb, get a battery and buy tires before it's ready to use.

Just one more thing though, what sort of a tool did they use for the tube clamps? A crowbar doesn't fit all that well and a crescent wrench is a less than perfect fit. Grind the tip of a crowbar to fit maybe?

Jim