I would suggest staying away from the Tera Flex High Steer Kit....actually they should really call it "Lower Steer".

The tie rod actually sits lower then stock, and I had sooo much bump steer the jeep was not safe to drive on the road

It took a lot of work (about 20+ hours) to get this kit to work on my TJ with a 4" lift, and if you read carefully on their site there's a disclaimer about additional modifications to get the kit to work properly. I dunno maybe it works better on a stock jeep.
Also the TRE's that come with it are junk, so we had to mix and match various Tie Rod Ends to make everything work.
At the end of the day, we got it to work and would not recommend this kit to anyone.

-joel