Shaky steering

[Mreynoldsrn]

Needing some guidance- I have a 2017 JKU. A few years back we upgraded the tires from 35” to 37” (used) and noted that it gets shaky between 58-63 mph. It’s noticeable from other drivers After months of driving like that, we upgraded the steering stabilizer, tie rod, drag link, and replaced the ball joints. It seemed to get a tad better but didn’t go away. About a month ago, we finally got new tires, 37” and for a few days seemed completely healed. However it started back up again. I haven’t gotten the “death wobble” yet but it does make me nervous having experienced that in the past.
Looking for suggestions as to what we are missing. My husband is ready to set it to fire! thanks

 

[BLACKJKU]

How much tire pressure do you have in them?

Do the chalk test to see where they should be set at, lots of info on the Web about the chalk test.

 

[Mreynoldsrn]

Tire pressure is about 33-36 psi

I’ll look up the chalk test

 

[Chris]

Your ideal tire pressure is going to be closer to 26-28 psi, I can almost guarantee it.

I would take the wheels in and have them balanced. There's a good chance a weight fell off of them.

 

[Anybodyhome]

A lot of tire shops are using adhesive weights on the inside of an aftermarket wheel. I used to check mine periodically and it was very easy to see where a weight used to be as they would fall off once the adhesive got wet and dirty.
I specifically asked for the old-fashioned pinched on weights after I experienced some of the same issues you're having. But we went through the tire balancing thing a few times; I normally run at 28-30psi with disabled TPMS; and only later discovered the drag link was bent less than 1/4" before I replaced it and everything has been fine since.

 

[JeepJeezy]

I'm running 37's at 28 psi. When I mounted them to my beadlocks, I threw in bags of balance beads. That was a few years ago. All my tires are still balanced and wearing evenly. Just food for thought.