Well, crazy by today's standards. I want to run a battery in the stock location on my '56 Cadillac. I think that will be a refreshing change from its former spot in the trunk. The stock spot is against the firewall, down low, off the front of the passenger side body mount. I've thought about making a battery tray and relocating it up front, but I don't want to change the quirky old stuff unless it's totally necessary. They make an awesome looking repro...that costs $300 + shipped. I'll probably get one if I have to, but I'd rather save a few bucks. The dimensions of the old tymey beast are 19 L x 4 ¼" W x 9. The only CRITICAL dimension is the width. I might be able to go with a 5" width MAX. What do you guys think?