Battery location

[Matt_50]

I like to look up 3100 stuff in my downtime. I'm not much of a Facebook person. Sometimes I run across some interesting things that I save for later. For example...


Here's a pic of what someone did to an inner fender for the battery. Anyone here done this? Im trying to think of a new place for mine and firewall won't work. I'd use the under floor spot, but I plan to carpet the truck and I'm not sure how well that will work for access. Any advice here?