If you go to the LMC site, enter your year and make of truck and for the search "30 1026" it will bring up rear studs for a 3/4 Ton. I believe they fit the 1 Ton single but I don't know about a dually. Here is the catalog page LMC Catalog


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!