LAME nailed it on location of employment haha Im a CAD Designer/Engineer at Art Morrison but also fabricate here and there when they need a hand. As far as the rectangular tubing, I solely did it to make mount the tub a little easierWOW Killer work so far! I'm gong to follow this one!!
Couple of questions:
Where do you work?
Why put the square tubing inside the sub frame?