[Kurt in NJ]

Old time mechanics didn't have torque wrench pretty much there was snug --snug up the pan bolts tight--tighten the head nuts ,and good and tight--put a pipe on the wrench and jump on it.
the rear axle nuts are in the range of good and tight
Can you tell if it is rubbing on the shoes ,or backing plate, there can be a ridge in the drum rubbing on the edge of the shoes, --for this chamfer the edge of shoes with file, if rubbing on backing plate look for bent backing plate if it only rubs at one spot, worn taper on axle or hub if all around, they have shims for this at the parts places
??Is the axle keyway worn, --the key fit loose in groove, there can be burrs that need to be addressed