New Upper Control Arms with SuperLift
I'm 3/4 complete installing JBA UCA's on my Jeep, which has the 4" Superlift lift. I haven't seen any other posts from folks with that lift replacing their UCA's so I wanted to post a couple gotchas I ran into.
First and foremost, with the SL kit their is a spacer installed on top of the front strut. Perhaps the same for other lift kits. This spacer gets in the way of the UCA bolts so you can't remove them without removing the strut. So double your time estimate for this job as you now have to remove the fuse box on the driver side and the coolant overflow on the passenger side, plus the four bolts on each side holding in the strut.
Second, I got some advice from Marlin at JBA to reverse the bolts attaching the UCA to the body. On both sides, due to the spacer installed, the rear bolt CANNOT be reversed. If you reverse it, you won't get the spacer past the bolt to install it again. Cutting the bolt didn't seem to be an option either with the space that was there, so I left it.
Right now I'm struggling with getting the new UCA to seat properly in the knuckle. It's just not settling enough so I can't get the cotter pin inserted through the castle nut. Maybe I need to use a clamp to press it in?
Other than that, this has been the most frustrating install for me. Not because of the parts but because of my tools. It started out with my floor jack going bad, so I had to use my hi-lift. Then removing two of the strut bolts I snapped one ratchet and two extensions. I'm pretty sure the SL installer from years ago stripped them out, so I was screwed. I tried my air tools only to find my compressor is busted. Having ratchet wrenches would help immensely, but I wouldn't know since I don't have any (yet.)
Oh, and when you bolt the strut back on, torque to 70 ft-lbs.
2005 WK 5.7, SuperLift 4", 4xGuard front/rear (bottom/side in the garage :(), AirRaid CAI, JBA UCA's