Dave,I am not familiar with the 3/4 ton rear axle you have if it doesn't have a small cover plate bolted to the "nose" of the brake drum that is the axle end that pulls out,and then two very large nuts holding the drum to the axle housing. The type of "floating axle" rear I am familiar with requires no puller. You just pull the axle out,unscrew the large nuts,pull out the outer bearings,and pull the drum off by hand. I can't find my Motors Truck Manual right now,so I can't look it up.
The arms on the puller I am talking about fits right over the lug bolts,and uses the lug nuts to hold it to the drum. The large center screw lines up with the axle end,and a smart move to make is to put the axle nut back on the axle end and back it off from being flush with the axle end just enough so the point on the puller center screw is held into place and centered. You lost me with the question about the studs being on the spindle.
Do NOT look for a heavy duty puller with hooks that attach behind the drum
View attachment 1643
See how the center of the brake drum sticks out on the front of my truck? If you have a center hub on your rear that extends out like this,just remove the bolts from the center,pull the axle out,then remove the two VERY large nuts that screw down over the end of the axle housing on each side,remove the bearings,and pull the drums off by hand.
If you can't pull them off by hand chances are the drums are worn and the brake shoes will have to be backed off so the drum will slip off without dragging on them. Do the drums spin freely? Do they make scraping sounds when they spin if they do spin? If you can't get the brake shoes to back off you can always cut the heads off the brake shoe "locator pins" that hold them to the backing plates,and then smack on the outside and sides of the brake drums with your BFH until you break them loose.
DO NOT USE A HEAVY-DUTY PULLER WITH HOOKS THAT CATCH THE OUTSIDE OF THE DRUM UNLESS YOU PLAN ON REPLACING THE DRUM. Those big pullers can bend and ruin the drum. Seriously. The apply a amazing amount of force.
Would it be possible for