You guys are used to seeing my track car with lots of holes drilled in it. This is for my shiny red 75. I wanted the adapter and battery to bolt in using just the original single bolt. This is what I came up with using scrap I had laying around. I found that 5/8" round tubing makes a tight fit under the end of the battery tray. The rest is 1 and 2".
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Painted

Installed

Makin' stuff!
Love it.

With battery. I needed one small 1/8" rubber piece under one of the arms for a tight, no movement fit.

A little bit! I haven't done anything for this car in a couple of years.

Well done! Keep a proper trickle charger on it. "They" don't mind but you will if you turn the key one day and get "nothing".

Nice fit, clean and purposeful!