The Odyssey battery model number that fits in the stock TJ battery location without any modifications is PC 1200LMJT (catalog number 0766-2022).
Link to the manufacturer?s web site:
http://www.odysseybatteries.com/battery/pc1200lmjt.htm
This battery is slightly shorter than the stock ones. This particular part number has the positive terminal on the left side (like stock). This battery is also available with positive terminal on the right side (remove the ?L? from the model number, and decrement the catalog number by one for that).