Expansion Tank Cap (Secured)

These two examples of lock rings and circular brackets are over engineered for simply safety wiring the expansion cap.... if that's what it is. Ideas?
Ford-GT40-Chassis-1046-Engine~2.jpg
GT40-7_Slide21~2.jpg
 

Pedro

Supporter
You have a good eye I have never noticed the small round bracket on the chassis before, the small hole on the tank upper bracket is to secure the mounting bolt. Perhaps the bracket on the chassis was for a chain to hold the cap?
 

Attachments

Ya looks like my top photo is using the safety wire hole for bolt and my 2nd photo the hole is not being used at the time the photo was taken.
 
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