Mine is still under the floor on the passenger side.
Pros:
1-it is out of site
2-I sealed up my box pretty well with live rubber and put in a drain sytem nothing gets to the battery
3-space is at a premium under the hood and not having a battery in there is nice
Cons:
1-when i first got on the road my battery was old and let me setting at the local Hardware, luckily i have a long set of jumper cables or where i was parked it wasnt happening had to run the cables through from the drivers side window
2-roling up the carpet to get to the battery is a pain
3-you have to be very careful tightening up the positive cable or ya end up touching your wrench to the steel and ya get a nice spark..i keep a 1/2" wrench covered in black tape just for the battery in my tool box

So there are some good an bad points to either set-up it is all up to you it is YOUR TRUCK.
Tim




1952 Chevy Shortbed

Photos in Photobucket

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