Wow pity anyone that would buy a used vehicle from you. I originally saved this truck from going to scrap, I sure as heck ain't sending it there.
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I don't really see an engineering nightmare, certainly nothing much harder then a 4 link and body lift.
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Boxing the frame is in no way practical and that IS an engineering nightmare. Have you ever boxed a frame before?
Ahhhh, yes.......
The internet......
Be sure to post pics.