Mark, you are correct the first photo I posted is a 6 sp non live pto.
Did you remember my junk or were you able to tell from the pic? If so tell why please.
The photo below is a 3600 with lpto. You can see the arm/bell crank is different. Both however are welded onto the shaft.
Kermit, can you post a photo of it?
If the arm was welded onto the shaft then it surely can be rewelded if broken.
Check Break offered good advice too below. Make one.