Ford 22-60 rotary mower

Hello, I got a old Ford 22-60 hog. It came in peices, top 3/8 angle was broke, came with a larger tail wheel, and had missing bolts. I had some 3/8 angle laying around from some shooting targets I made years ago. So I decided to venture down repairing it. I welded on a larger spindel reciver for the larger fork and it started looking like a brush hog, so than i painted it! The good: gear box is soild, deck is soild and got it with new blades.
Questions:
1. Where the drive shaft meets slip clutch with those standoff spacers do I use grade 8 bolts or something softer that will shear?
2. Should I drill and tap the 1/2 fill plug on the gearbox to accept a grease fitting? If so what type of grease?
3. Where do I get new slip discs for the clutch? Or should I or can I even replace the clutch with a new one (aftermarket)
4 also the PTO is shot looks like if I bought a new one I would have to knock out the quick disconnect and connect the universal joint to the plate thingy?

Sorry for any Missdiscription as I have not owned a brush hog before, and thank you in advanced for you help
Side note I'm using a 1953 Ford jubilee with a PTO overrun clutch.

make you a chain for your top link, will stop putting pressure on your tail wheel and angle if mowing uneven fields

1) If those bolts shear can the driveshaft seperate from the gearbox? That would not be a desirable situation.

2) I don't use grease so no zerk for me. I do check the oil level EVERY use of the mower. The gearbox had a fill plug that had a hole drilled in it with a cotter pin in the hole when it left the factory. It served as a breather to relieve air pressure.

3) Check to see if your New Holland dealer can get the discs.

4) If the square steel portion of the shaft is not bent or otherwise unusable, you can buy a "weld-a-shaft". You would get the female square, a round tube which you cut to proper length, and 1/2 of the yoke for the front universal joint. If going this route you must weld the yoke in the correct orientation so the shaft will be in phase. The picture of your shaft shows the proper phase.

There are manuals available for download on the "N" Ford forum. One of them has instructions on how to adjust the slip clutch.

(quoted from post at 06:50:07 09/11/20) 1) If those bolts shear can the driveshaft seperate from the gearbox? That would not be a desirable situation.

2) I don't use grease so no zerk for me. I do check the oil level EVERY use of the mower. The gearbox had a fill plug that had a hole drilled in it with a cotter pin in the hole when it left the factory. It served as a breather to relieve air pressure.

3) Check to see if your New Holland dealer can get the discs.

4) If the square steel portion of the shaft is not bent or otherwise unusable, you can buy a "weld-a-shaft". You would get the female square, a round tube which you cut to proper length, and 1/2 of the yoke for the front universal joint. If going this route you must weld the yoke in the correct orientation so the shaft will be in phase. The picture of your shaft shows the proper phase.

There are manuals available for download on the "N" Ford forum. One of them has instructions on how to adjust the slip clutch.

Click to expand...

I really appreciate your reply.
1, never thought of that thanks.
3, when I head north I'll swing buy and see what they say.
4, the plate welded to the PTO yoke is in good shape. So I assume I buy a PTO shaft with a open universal joint on one end? Press out the old universal attached to the plate and press in new one?

I ordered a paper manual from fleebay. Thanks again

(quoted from post at 06:50:07 09/11/20) 1) If those bolts shear can the driveshaft seperate from the gearbox? That would not be a desirable situation.

2) I don't use grease so no zerk for me. I do check the oil level EVERY use of the mower. The gearbox had a fill plug that had a hole drilled in it with a cotter pin in the hole when it left the factory. It served as a breather to relieve air pressure.

3) Check to see if your New Holland dealer can get the discs.

4) If the square steel portion of the shaft is not bent or otherwise unusable, you can buy a "weld-a-shaft". You would get the female square, a round tube which you cut to proper length, and 1/2 of the yoke for the front universal joint. If going this route you must weld the yoke in the correct orientation so the shaft will be in phase. The picture of your shaft shows the proper phase.

There are manuals available for download on the "N" Ford forum. One of them has instructions on how to adjust the slip clutch.

Click to expand...

I really appreciate your reply.
1, never thought of that thanks.
3, when I head north I'll swing buy and see what they say.
4, the plate welded to the PTO yoke is in good shape. So I assume I buy a PTO shaft with a open universal joint on one end? Press out the old universal attached to the plate and press in new one?

I ordered a paper manual from fleebay. Thanks again