2manytoyz wrote:
The square tube on the back is actually welded to the I-beam frame. I can stand on the middle of it, doesn't flex.
Pop cans are pretty strong as long as they are in perfect condition but the second you crack them open, they lose a lot of strength.
Shape can provide a lot of strength...but by using a very thin layer...any corrosion or minor dents and it can lose a tremendous amount of strength.
Result: You mount the rack, everything seems fine...2-3yrs later corrosion on the inside of the bumper weakens it to the point that it fails. Or simply you crank down too much and the mounting bracket dents the bumper wall.