Wow, old thread. Arctics Jeep has since been on long arms and 35's, to now being parted out. We took the tires off for the last time yesterday.
I dont know where he got it, everytime I went with him he had a new bumper with a mount on it. The store in front of the dunes (David Allen Racing) has a bunch of mounts and will help you with whatever fits best.
04 TJ - 2 KC Daylighters, 35x12.5x15 MT/R Kevlar, 3" coils, Rear 4 link, 1.25" JKS BL, 1" JKS BMML, 33 Eng. Hi-Clearance Skid, 8.8 with LS, D30 EZ locker, OBA