Hey soon I am going to be changing my battery, but the battery group size is a 36r. Those are like gone! lol I am wondering if I can change to another battery group size...like a group 34 battery. I know I will need to install the tray for that battery. My second question is will that tray fit the OE tray that is currently holding my 36r battery? I know it is kind of confusing but clarify please..since im rambling on and on, on this forum lol.