I have always got the flush stuff from parts store and poured it in lines and blew out with compressed air. Never had any issues doing it that way. Sent from my iPhone using Tapatalk Pro
I built one with 2x2 tubing for recover hitch and welded a 1x1 inch square tube for upright and hung flag on it. Not flimsy at all. Have a 5x4 flag on it I think
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