If you get double-D u-joints and intermediate shaft, you just have to grind flats on opposite sides of the original shaft so it fits in the first u-joint. If I'm not mistaken, the rag joint will be on the new steering box, not on the original shaft.
I believe kits are available for adapting the original steering column to a modern steering box. They have machined bearings and stop-rings to keep the steering shaft centered in the tube after the original box is cut off. Check with the vendors of the power steering kits.
Current fleet (subject to change w/o notice) \'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run. My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787. Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.
| 
