I’ve had both.
You will need conical acorn nuts on the front and mag nuts for the rear.
You can likely buy the conical 7/16" thread nuts at any tire shop that sells mags or order online at your vendor of choice..
The rear nuts I might even still have some left from my Cragar’s days too. Is your car all right hand thread or do you still have some left hand thread too?
this whole scenario is kind of a pain in the *** because the hex size for a conical/bulge nut is 3/4" and the hex size for the rear nuts will be 11/16". They look slight different when installed as the rears use a shank style with washer but not really noticeable once everything is installed.
Cragar makes the nuts for the rear and are usually available through summit. Part number for right hand thread is A-09005-4 and the left hand thread nuts part number is A-09004-4. They are both only sold in packs of four so you will have extra’s when you’re done but oh well.
I find the washers on the new stock mag nuts for these wheels kinda soft. Avoid over tightening them as the washer will sorta bend a bit around the nut. The old school washers were nice and thick and rigid.
Check wheel tightness often for the first 1-200 miles especially the rears. Eventually they should settle down and stay tight. The front aren’t as much of a concern but it is always good practice to re-torque lugs on new set ups for the first while.
I do have some bags of new shank nuts left over too. If you let me know what you need (right or left hand thread) I’d sell mine.
