Proforged Tie Rod End Part #?

I'm not sure, but I think on my '71, the difference between the disc & drum lbj's are the mounting bolt holes (1/2 or 7/16 vs 9/16). Maybe someone else could confirm that reaming Drum lbj's to 9/16 would make them work with discs. Just thinking out loud.

BTW....Sorry about the tie rod adjuster reference. I compared the Proforge adjuster (which you would need with 11/16 tie rods), with the standard OEM type, (which you wouldn't have to replace with the 9/16 rods)