[dsraven]

1project makes a good point. stuff never seems to go back. good idea to source and machine a spare set to accept the roller bearings etc. it's more stuff to keep though and more money spent.
if you wanted to make the rear axle studs the same as the front you could check online, a site like hpaulin or napa etc. check the specs for the studs that are in the axles now, then look for something the same size at the press in area that also has the thread size you need. you could also drill the axles between the other studs to accept a stock old truck wheel stud, then remove the metric studs, the drums would still fit etc.