gmc- I was told at the paint shop that they could'nt sell red oxide primer any more cause it was a laquer and the EPA outlawed it. Except in spray cans. I just shot my truck with beige primer and used the equivalent of thinner which is reducer. Sorry I can't help but the paint&body board has some experienced painters as well as here.
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69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint
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