I'm sorry to start another battery thread. I have done a search and read through a lot of posts but am still not sure what I should/can do. I'm wanting to get the battery with the most reserve capacity that will fit in the factory location with very little to no modification. I'm running a refrigerator now but I don't want to do a dual battery setup. I've seen a lot of talk about a group 31 battery. Do I need to get a different tray to be able to put one of those in? Thanks for any suggestions.