Once I got the inner rear floor structure set, I cleaned up the cab corner. Man, did this fight me. The old skin was dented and bent, and I didn't care too much to straighten it as this is just a patina truck and will be driven a lot. But the amount of pin holes, blow through, all kinds of headache. But finally got it in, cleaned up and got the inside rather cleaned up (wearing my heart on my sleeve showing those welds) and will seam seal that all up so it has better longevity. I normally use the Eastwood High Solids black. Haven't had a problem with it. Once cleaned up I did the normal U-Pol #8 Acid Etch primer.