Step 12Struts
The struts tether the Upper Beam to the Lower Beam; keeping it in position.
Remember the Upper Beam relies on expansion pressure to hold itself in place on the upper edge of the bed of the truck. Over rough roads the truck bed will flex; the beam is not spring loaded.
Without the struts, I have this vision of the Upper Beam working itself loose and cart wheeling down the freeway (Shudder!) .
The struts are probably a bit of over kill, but thier presence calms my paranoia.
The struts are made from 1/2" diameter threaded rod, threaded fence gate hinge "L" posts, threaded couplings for adjustment and locking nuts.
The rod used for the struts are certainly over-sized for the application but, I used them because they matched the thread size of the the gate hinge posts....that mated to the gate hinge hardware (also used as the Tire Guides)....and they obviously are designed to fit on the fence post that I wanted to use as a beam.
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