Hi Iris,
The fasteners for the rock shield on my '72 and '76 Trilliums were like
the photos attached. Last photo shows tightening the wing nut on the
strut that holds the rock shield in raised position to be used as an
awning.
Larry H

[attachment=33690:RockShie...astener2.
jpg]

[attachment=33693:RockShie...astene
r4.jpg]