I have been going back and forth between going dual batteries versus a bigger battery. For what I am going to be doing, I think a bigger battery will work better for me, camping with an ARB and other small loads. I would really like to shoe horn a 31M in there, I think the 13" length will fit. But gaining 1.5" in height ain't going to happen with out putting a crazy bump in the hood. Yet, I have seen a couple of people say they have done it to their 2004 Tacoma. But I can't find any pictures of how they did it.
If you have done it? How? Is it laying on it's side in the factory position with a relocated radiator tank? If not, how big have you gone?
If you have done it? How? Is it laying on it's side in the factory position with a relocated radiator tank? If not, how big have you gone?