Smoking L/H rear wheel

[Sammy]

This truck had set for a long time before, I believe. I previously had drained & refilled the 3rd member with oil & had to replace the pinion seal. Saturday I took out about 25-35 MPH after about 1 mile I was informed to look at the rear tire. It was in smoke justy covered & looked extremly warm but no sizzling in sound. Today I pulled the wheel & drum to have a look. Everything looks good & normal except the outter edge of the drum had gotten warm enough to cook the new paint on it. When I put the drum on & tranny in nuetral the drum spins backwards but not forwards. WOuld this be a axle bearing seized or something in the third member? And if it is the axle bearing since this isn't a posi do you just remove the 4 bolts and pull the axle or will I have to pull the differential cover plate for clips. I think this is a 308 rear?? I am going to have to pull the right side anyway since the grease seal is leaking. I'll be doing this probally tomorrow need to get this truck roadworthy for the board meet around the corner. At least this didn't happen 100 miles from home on the side of the road..