When you go to reassemble the drum on to the knuckle you need to be careful to see that the unit goes on and off in a straight line so that the gasket on the inside of the brake drum is not damaged. This is difficult too do by manually holding and lifting the drum while aligning the spines of the axle shaft. If you set up the spacers and bearing load according to the manual you will be pulling the drum off at least twice if you are lucky.
I’ve used a couple of methods over the years the best is with the drum slung from and over head hoist (see
http://www.canadianmilitarypattern.c...eRemoveal.html ) toward the bottom of the page you will see the rear drum rigged for removal I use the same approach for removing and reinstalling all of the drums.
Or a roll around engine hoist anything that will allow you to align and hold the drum square to the knuckle until the load is picked up by the bearings. I have used a rolling floor jack to support he drum but this doesn’t hold it as steady.
Thirty years ago I thought nothing of trying to manhandle one of those drums off or on by hand, not any more.