David Bradly sickle mower update clutch issues

Last week I posted about trying to get this mower back up and running. You guys helped me out getting the cutting bar set up but I was still having problems with the clutch so I took it apart and found some broken parts. The nut that sets the spring tension is sunk deep into the plate over the spring. That will have to be fixed.
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I took the pulley off of the PTO shaft and found the main issue. The plate that the slip clutch fits onto on the PTO shaft is badly worn and broken off of the shaft.
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I dont think Ill find parts for a machine that was last sold by Sears and Roebuck in 1956 so the plan is to weld the holes up in the plate and re drill them then weld the plate back on the PTO shaft. And put it back together. If the is another way to make the repair let me know. Ill updated when I put it back together. Thanks!
 
Always some fixen on these old units . If it aint one thing ! its six !
Its winter so keep looking now , dont want to be in the field looking when its 95 F and 95 percent humidity for sure !
 
That looks like the slip clutch out of a #6 or #7 Massey Harris mower. I found similar parts at a John Deere dealer that had been in business for decades when I repaired my Massey mower years ago. I think those wear parts were common to lots of different brands of equipment.
 
I would look for the backing plate that drives through the slip clutch and clutch parts on an old combine lots of those old slip clutches used on them from the augers to the drives on raddle chains to bin unload augers. Cut the back plate off with a cut off wheel then weld to your shaft then use that slip clutch that fit the plate. You then can find parts for it under the combine you use.
 
If you got part numbers ,Sears still has a massive data bank ,I give them a try ! You have to drill down to see . Only two outcomes yes or no !
 

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