You may find certain items here useful...................
https://web.archive.org/web/20180529202520/http://www.bigblockdart.com/techpages/4sptech.shtml
Maybe the cable mounts on the vehicle can give you a clue of the routing.
My '69 has both on the driver side forward of the left rear wheel.
https://inline.cellacore.net/document/General/964434030137915778_67-74%20Mopar%20A%20with%20Inter.pdf
IMO, the minute washer faces on these 7/16" Cragar SS lugs working against the Cragar supplied washers are too small to be reliable for holding torque. Doesn't take much to start digging into the washers. Couple that with any wear on the studs over the years you may be constantly re-torquing...
I believe OP was interested in what components are involved, not where to obtain them. Evidently Dale's does not by a search I tried.
From the '69 OM..........