Is it legit to add a jib winch, doesn't the truck need to be manufactured that way to be an approved material handling truck? If you add one I imagine you can only guess as to whether or not anything you are lifting with it is within specifications of the boom and your mounting method. I think if you had a problem using an aftermarket jib winch you would have a big OSHA problem especially if they check your manufacturers plate and it says "Approved for Material Handling - X No"....but I'm only guessing here.
