[JC455]

AA,
I didn't have much choice- the box was broken, so I cleaned it up and made a template out of cardboard. I then trimmed it until it fit just right and used some glue to hold it. I then coated the outside with fiberglass/resin and let it dry. I did the same to the inside of the box, applied some paint, resealed it and-voila- instant small box that looked factory.
As for your setup, I'd try score another box from a junkyard car (I think F bodies might be the same) so then you don't jack up your original- just in case you someday decide to go back to air (you never know).
Regardless of what you decide, trim the box down so only about 4 inches sticks off the firewall (trim more if you need more clearance/aren't pleased with the look), then do as I said with the cardboard and 'glass.
Pop it all back together (now would be a good time to change the heater core) and away you go.
Oh, just curious- my LM is a 68. It started as a 350/2bl, 2spd auto, air, buckets, console, ps, manual drums and no vinyl top.
I spotted another one today, but it origianlly <had> a vinyl top- looks like the guy already had some rust experience with it- it was all primed for paint and no new top.
How's your loaded and what all have you done to it?
Later-


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John