I ran a sander over all surfaces, and then used water to clean all the wood. There was a gear oil stain in the middle of several boards from when I had a transission in the bed I think. I used some spray Bleach Cleaner on that area followed by a degreaser cleaner a couple times. The wood glue shrank a bit, I used wood filler on the repaired cracks as well as the gouges. I shopped for a stainable wood filler for oil based stain. My first try left the filler standing out visually.
