Steering Box Peg, 2-Piece Version 50-63. 211-415-223

Steering box peg, this is the earlier version where one half of the race is a separate part, please check the pictures of the 2 versions against yours to make sure, top quality reproduction part, manufactured to original specifications. 

This is the most likely part to wear causing play at the steering wheel. 

(This is the 2 piece version, but this is only the peg part, you will need to keep the original other piece if you have it, as they're not available)