How da hell do you pull off the hub from drum!

go to the back side(inside) and cut off the stud..knock
it out from the inside towards the outside. that will keep the
hole the correct size for the replacement stud.

Unless you have something like an overgrown drill press or mill, I'm not sure how you would cut down the back side
have them do your welding of the new studs....

There should not be any reason to weld the new studs


The "high tech" way, which was posted on this board some time ago, is to get a swedge cutter tool. This is a tool resembling a heavy duty holesaw. You put the cutter over the stud, and it removes the "swedge" on the front. In some cases, you don't even need to remove the stud--just remove the drum and slide the new one on. Just like the rears, there is no reason, really, to have the drum riveted in place.

Here's a step by step:

http://www.classictrucks.com/tech/0805clt_1967_dodge_truck_brakes_dodgeing_disaster/index1.html