Couple of cutters I picked up

[Pete O]

(11-03-2015, 06:12 AM)Mayhem Wrote: Pete - I am pretty sure I have a 1/2" female - female socket UJ somewhere.  If I can find it, you are welcome to it.  You would just need to mill a 1/2" square at the end of each shaft.

Thanks for the offer Darren but the UJs need to have a round bore, as there is a shear pin in the shafts for over-torque protection, and I think a standard UJ would be too hard to machine. I may have to manufacture the yokes as they need to be kept as short as possible to minimise the drive angles. I'm thinking I could use one 1/2" (or even 3/4") drive UJ and split it, weld the existing yokes to each end of the splined shaft and copy their dimensions to make a pair of female-bored and cross-drilled yokes for the outer yokes.