Ask and you shall recieve! (Flip Top Gas cap Adapter)

I am currently working on a solution. I may have to make 2 adapters of different thickness.
Ill need to gather the "average" amount I need to decrease the depth.

So if you are installing this on a 1973 and up.. please do me a favor and try to get me a solid measurement of the distance between the back of the cap base, to the body itself.
I will figure up and average and see about making a thinner version.

I may be able to make a thinner version and just include a spacer of the difference for the older cars.

I will attempt to find a realistic solution to the issues for the 73' and up guys! :)