2nd battery install in a GMT900 Suburban - TP2 option

intheburbs wrote:
You do. Same goes for the GMT800 platform, except the reverse: your primary battery is in the front drivers side location, and the aux battery location is the passenger side against the firewall.

That's not reversed then that's the same config as in your picture above. My a/c components are much more to the right. There's not a lot of extra room under the hood with the 8.1 in there. I will have to do some digging!