This is where I would start. 37 seems a bit high, depending on a couple of factors. A chalk test will tell you right where you want to be. My understanding is that most people here on the forum run 25-35psi on road. Like it has been said above, A better steering stabilizer will only bandaid the problem, and as the problem progresses, said band-aid will become less effective.
Who knows, maybe you'll learn a thing or two (about your jeep) once you slide under your jeep and start trouble-shooting.

 

Would definitely suggest starting with this route. Most people run between 30-35 on 33's and find it suitable.

Also, if you have access to a gopro that you can get under the jeep do it. Mount it up and drive around for a bit recreating the problem you might have. Specifically try and get all the steering components in the frame. This will let you look at how all your parts react to driving conditions, and see what you need to check.

 

what tires do you have? I think your pressure is high, I have 33 bfgs and I run 30 in front and 35 in the rear for carrying loads. Any more in the front and it handles wonky. Its going to feel different with bigger tires regardless. there is a lot more weight compared to the stock tires.

 

I have nitto grapplers A/T they are 86lbs with the xd addicts
16lbs more than my OEM Sahara wheels

 

Hey what do you mean by chalk test?

Wheel chock test? please explain
thanks
Jin

 

Yea a wheel chalk test. Can be done 2 ways. Put a nice coat of chalk on the tire and drive a little but to transfer to the ground. Check the pattern on the ground to see if your over inflated or under inflated or just right. The other way is to just put a nice coat on the ground and drive over it and do the same thing. They have youtube videos on it I believe

 

It is the most accurate way to test if your psi is achieving an even load across the surface of the tire. Get sidewalk chalk, level surface like a parking lot or flat driveway. Mark a 1-2" wide line across ur tread on all 4 tires. Drive straight forward or back a couple feet until you've got a full revolution of the tire. Check the chalk mark for how much chalk came off the tire.
If you've got less chalk in the center of your stripes than the outside edges of the line then you're tires need less psi. If the center has more chalk than the outside then u need more psi. It's good to test at 1-2 psi at a time. You will hear many different opinions on what numbers are right, but with all the different tires and vehicle weights it is impossible for there to be one correct number. You can even find that all four tires could use different psi depending on the weight distribution over the 4 tires.
I have a heavy jku sahara with 33" falken wildpeaks and thru chalktesting iv found that 34psi is just about perfect for my jeep for DD'ing. When loaded up for a camping/wheeling trip I need more psi for the road portion of the trip to handle the extra weight.

Just google tire chalk test and watch a youtube video if you want a better visual of what vhalk testing is.

 

Hey guys,
Just an update. I just went to the gas station because i didn't trust my tire pressure gauge.
And my PSI were 40. I've now lowered them down to 35 rear and about 33 in front.
so i'll see how it drives.
Thanks

 

No a stabilize won't make a huge difference. Check track bar and drag link. I got a dual and it's no different. So if you have yet to buy go basic.

 

Sounds like it's been covered pretty good already and don't wanna beat a dead horse but SS really just masks the real problem. Check the torque on all steering components (drag link, track bar) and even check out your ball joints.

35 psi still seems high and will def give you a rough ride. I run 37's at around 28 psi which has given me an even wear and nice ride. With that said, I also took off my SS and haven't noticed a difference and drives perfect, even hitting railroad tracks. I also run a dragline flip kit which is good if you have a lift above 3-3.5" to correct your steering geometry.