I did a search on this. Came up with a lot but not what i was looking for. i have 5/16" spacers and aluminum drums now. I knew my studs were going to be too short. I run stock wheels and didn't want to cut my lug nuts up. 3" gm studs are just too long
I went to my local parts store and we looked through the dorman book. the studs are pictured actual size. I got some dorman 610-409 studs m12-1.5x56mm about a 1/2" longer than the stock lug nut.the parts store had to order them directly form dorman because they are new part #'s. perfect for what i needed. the only thing i had to do to them was buy a die to put a few more threads on. There isn't but about 1" of threads on the stud. well hope this helps someone

