72 Duster Resurrection

I have seen others on here that have improvised on the upper joint socket. I think you can get em cheap enough though. You may want to get one if you plan on doing this to your dart too, you can always resell it when done. If the joint threads in nice and tight a tack weld is probably unnecessary.

Are you using the lower arms that were powdercoated? Are the tapered holes full of powdercoat? If so, probably tape off the rest of the arm, and sandblast inside the taper to clean it out.