Be aware that it is possible that brake drums could have been accidentally swapped side for side during previous work on the truck, or drums replaced with new or salvage, however.
Also, sometimes folks will swap out a few broken off left hand studs with easier-to-source right hand replacements.
Bottom Line: If you are struggling to get any lug nut off, carefully inspect the end of the stud to determine which way the threads are going before you resort to more forceful removal methods. Most times, a left-handed stud will be marked on its end with an “L”.
Should you ever decide to take the truck in for “professional” wheel, tire, brake (etc) service, make sure you brief the service staff on the lug nut situation.
Chances are, if the technician happens to be under 75 years old, he'll never see this coming, and the young whippersnapper will be presenting you with a handful of snapped off studs (with the lug nuts still on them, mind you) and a repair estimate for replacing all of those “frozen up/rusted on” lugs/studs.