67-72 Intermediate Steering Shaft coupler

[RR440MAN]

Ok,

Gotta love this. My son while removing rust from the intermediate steering shaft has misplaced some crucial parts. Does anyone have any info on who makes the pot joint coupler kit. I am in need of a retaining clip (left in driveway and run over), and the square peg nut which attaches inside the coupler. I have found that Crown International makes a coupler kit but it’s for Jeeps. Anyone have experience to know if these are compatible? Attached are pictures of the parts.