Sorry I originally missed your reply. I’m running 2” spacers & fox shocks. The stock track bars have very cheap bushings that aren’t really designed to rotate well. If you watch Eddie’s video he clamps the stock one & a synergy in a vice and demonstrates. Synergy’s design also allows the frame side to rotate a bit as the head is threaded into the adjuster. Stock is welded in place & doesn’t move. The cheap bushings & being twisted out of their designed alignment must cause a lot of extra noise & vibrations to get transferred from the axle to the frame. I did my tires first, 33s no lift, and noticed a small difference due to them being KM3s, but that was really only tire noise. Then I did the spacer lift which really affected everything negatively. She was pretty squirrelly around 75-80 mph so I got longer front LCAs & a pro alignment which helped that a bit. Then the steering stabilizer which only gave me a small difference on rail road tracks & bridge joints which I hit a lot of every day. Next I scored the used Foxs off the recycler here. The stock Sahara shocks were definitely not up to the task & the ride improved a bit. I learned to live with it. Finally I got the front track bar. it was such a drastic difference! The only way I can describe it is “bound”, like the suspension wasn’t really traveling well. Every crack or manhole cover was a small shock in the steering wheel & seat. Those hits were traveling through the vehicle to me. Once the front bar was in it felt like the front axle was hitting the object & I was finally sprung above it. But, I still felt it a bit when the rear tires went over so I got the rear bar too. GONE-the body is now fully floating over the road. Now, I’m not talking like an old Cadillac or something but it’s just so much more pleasant & compliant. Way less little steering corrections due to jolts. Way better than the day I bought it. I haven’t wheeled her yet, but I can’t wait.