When I decided to do this I looked for some insight. Lots of people said how easy it was, but there really wasn't a how to. It really was easy. Mostly, this will just give some better photos for those of you considering doing this. The way a 30-31 firewall comes foward, I think this is a better looking solution than cutting a big hole and filling it with something like a wheelbarrow. It really didn't cut into the foot room very much. First off, here is what you are starting with: Take some measurements of the opening for the gas tank and drill out all the spotwelds and rivets. Some of them are hard to find. With it removed: Hold it in there and eyeball how much needs to come off the toeboards: Cut away. Note how the "foot" of the firewall is separate. It will come off and get turned around also.: More in a minute.