I am at 3". I went with the Rough Country HD track bar at first. lasted me about 3 years. I WILL NEVER BUY ANOTHER MAJOR COMPONENT FROM ROUGH COUNTRY EVER AGAIN.
First of all, they sold me the HD track bar claiming i could adjust it to fit a 3" lift. However i cranked the tie rod down all the way and it was still putting my front axle about an inch offset.

One day i was merging onto the free way and tie rod on the end of the "heavy Duty" track bar broke. My jeep jolted about 5 feet into the grass. luckily I was only going about 40mph. Nobody was hurt but i was stranded for a few days because the rough country tie rod is not a normal size and has to be ordered from them.

Instead i went with the Iron Rock Offroad double sheer track bar. This thing is BOMB PROOF and does not require welding. I am VERY happy with it after 2 years. Shows no signs of wear. I am still at 3" with 31s and not a whole lot of offloading.

I will never buy from Rough Country again. I highly recommend Iron Rock Offroad.

I am in the midst of installing a clayton long-arm and decided to go double-sheer while i was at it. Claytons sells a stock height double sheer bracket.

Haven't got it installed yet, but it seems pretty stout.

https://www.claytonoffroad.com/trackbar_brackets

I have a IRO double sheer track bar and have zero issues with it. I figured it would be worth it to spend a little more and buy a good one.