Who makes axle housing studs?
Might check with some of the places that advertise in 4wd magazines. The Dana 60 is popular. The parts should be available somewhere.
I know what you mean about the parts department people not looking very hard. I needed a special O ring for the speedometer drive & they told me I would have to buy the entire drive. O ring wasn't available seperately. I found a part number later & it was still available. They should be able to find this stuff. It's their job.