Killed the gremlin... Now thinking of a lift.
After months of chasing my tail I purchased a new BCM from eBay and the parasitic draw is gone. The part number is different, but I haven't noticed any issues - it actually seems to be running a little smoother as far as idle and acceleration.
So I looked again at the lift/tire size chart in the FAQ. It says 33s will fit on a 3.5" lift. Will 33s on a 3.5" require trimming?
Also - Iron Rock says their foundation series kit includes everything but I've noticed threads talking about adding a adjustable arm. Can anyone clarify? I emailed Iron Rock general email this week but did not receive a reply.
Lastly a quick shout out to Deejay Zeejay, Zeejay97, Coralman, and KoreaZJ and all the others who helped guide me in hunting down the gremlin. It was quite the learning experience.