So I've been planning on doing a dual batt setup for a while now. With the winch, aux in the cab, etc, but most importantly, the various camper setups, I figured it was time. I ordered up a warn isolator, but I'm having a hard time locating the second battery. I don't really want to do the dual setup in place of the big stocker, and I have ABS so there's not the nice spot on the passenger side that some others have used.
I did, however, find that a group 51 would fit behind the fuse block in front of the brake master cyl if you relocate the relay box like so (ignore the crappy night-time cell phone pics):
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It will sit a little nicer if there was a tray, was cocked due to the curve of the inner fender.
Has anyone tried this setup before? I know optima makes a yellow top in D51 configuration, are there any other deep cycles in this group size?