I thought I would get all the stock wires out in about 15 minutes but it took three hours! This wiring crap should be done prior to the cage...my bad.
I got a better look at the brake booster. How in the hell do you get to the top passenger side nut? I have changed a few of these in the past (not on a Mustang) but I could not even reach in and get my hand on it.

JJ