Basically, that's what I did today.....it appears to have the 11/16th's 18 TPI type. The Moog listings don't show anything with the proper taper on the stud,. I scoured the internet and came up with one that looks correct...actually fitting a '57-'59 truck tie rod or drag link end. We'll see I guess.....I guess I could always take the pitman arm off the box and get the tapered hole retapered if neccessary at a machine shop .