Does that brass one press onto the original steel center once the split plastc one is removed. How are they retained to the center as there's a lot of pressure turning that against the clutch spring resistance. Looks like a great replacement idea if it holds. Skillful people out there making things.

The brass piece does press on and takes quite a bit of force to press it in, I used a vice and slowly press on, checking frequently that it was going on straight. The steel center has nurling on it to help hold it on. I got the part from KDI reproductions.

So does the original center bit still have the ball bearing.

Yes, the only thing that was changed was the brass piece for the broken plastic piece.

Interesting thought 'that'. I guess it doesn't get a lot of use & if greased up it must last ok. Or hasn't it been around long enough to find out. The RD style one i use has a 4 start spiral & is steel with a nylon outer. Anyway, i don't use the clutch--or only for starting off--gosh did i say that!!