Let me see if I remember correctly. You know the basics so i willl fast forward to the part where you remove the breaks, you might need to replace the shoes since they might have gotten contaminated with oil.
removed the 4 nuts from the outer side of the brake assembly, imagine as if you are looking where the hard brake lines are assembled with the rear brakes drum assembly-> [color:"red"] [] [/color] [color:"red"] ~ [/color] <- hard brake line and pull the axle. I believe that you have to pull the bearings as well (sorry I am not certain of this others can confirm) if that is the case they have to be removed and pressedc back in witha special press therefore your local NAPA or mechanic might do this for a nominal fee.

To put back together is the same reversed procedure.

Like you I got to do the same to my new 1990, so I will as well benefit from the other's feedback.
*** Please allow me to stress how important it is to secure the vehicle with the appropiate wheel lock and jack stands before you get under it, be safe.

Good luck.

Javy