Jay,
It does seem like a rather flaky design...I suppose these old trucks just lumbered along and saw little "Dukes of Hazard" style jumps. As seen in my first image above, I made a bracket that secures the battery down to the bottom of the battery box. I am not sure if an acid style battery has a tab on the bottom that could serve as a hold down point.
Michael-nice fire truck, did it originally have a 235?
Paul
