I had a Ford Script 6 volt battery in my '39 years ago and maybe it was my charging system but replaced with and Optima in a Ford Script enclosure and never looked back. Sold the '39 a couple of years ago, but saved the enclosure. Fast forward to my '47 SuperDeluxe. Got a new...yes taller....Optima 6 volt and placed the enclosure over it....without the wood bottom.....and it works fine. You've got plenty of height in your battery compartment. Hold down fits perfectly.
My attempts to salvage the old original Ford case didn't work out....probably "user" error.
