Upper or Lower rear CA's?

[chiggerdude]

So my new Teraflex lift was suppose to be a 2.5." After install I realized it's noticeably higher than predicted, I called TF.
They've since renamed and changed the part number for the lift, because the rep said the engineers jumped the gun on the specs. It's actually a 3.5" lift now.

Anyhow, the jeep drives fine except for a tiny bit of drive-line vibration. I can feel it in the arm rest and barely on the steering wheel.
I've installed front LCA relocation brackets and a JSPEC adjustable front track bar. It's getting noticeably close to where I want it to be.

Teraflex is telling me I need rear upper control arms to even out the drive-line.

The wheels surprisingly look centered in the wheel well.
Should I just purchase the adjustable rear upper arms? or are the lowers needed as well?

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[butcho]

Should I just purchase the adjustable rear upper arms? or are the lowers needed as well?

Rear uppers together with front lowers is the meta.

 

[Sheepjeep]

Rear uppers will do just fine, the the lowers will help position the axles forward and back, and the uppers will rotate the axles but doing both can help if you think you need them as the stock lowers will pull the axles slightly closer to the center of the Jeep with more lift

 

[chiggerdude]

Thanks all..This is the info I needed.

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