Rear drum locks up going forward, frees up in reverse.

[Markuli]

I learned that when I first changed out all my hardware- the drums wouldn't even go on at that point! So I know everything is oriented properly. I'm just about positive the e-brake cable was slightly engaged and rusted solid in that position, so it ever so slightly pushed out my shoes. Now that it's disconnected my truck rolls just fine, forwards and backwards.