Bump Steer to Death Wobble, another possible "Source"

[kevman65]

Symptom, hit a Charles Depression on the Interstate at speed.
Could feel the bump steer and then the oscillating vibration and then full blown DW.
Got the JT stopped in the breakdown lane and took a few deep breaths and continued on.

Couldn't replicate it UNTIL same spot, same hole on the Interstate.

Unfortunately, my back was screwed up and couldn't crawl under to investigate. So parked her and drove another vehicle.

When I finally got around to crawling under, retainer bolt for axle side of steering stabilizer MIA.
Ordered a new one and had to wait for delivery. Once arrived, we in Indiana went through our monsoon, followed by extreme heat. I have a backup vehicle so I waited.

This morning the temps had broke, so I gathered needed tools and crawled under the JT.
Both ends of track bar were loose (less than 150 lb ft) so tightened those. Took stabilizer off and gave it a once over, had to press the sleeve back into the rubber bushing where the missing bolt was. Reinstalled stablizer, WITH Red Loctite (AGAIN) and torqued to spec.

So, long story short. Check EVERYTHING on the track bar for correct tightness, even the steering stabilizer.

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[Maximus Gladius]

Symptom, hit a Charles Depression on the Interstate at speed.
Could feel the bump steer and then the oscillating vibration and then full blown DW.
Got the JT stopped in the breakdown lane and took a few deep breaths and continued on.

Couldn't replicate it UNTIL same spot, same hole on the Interstate.

Unfortunately, my back was screwed up and couldn't crawl under to investigate. So parked her and drove another vehicle.

When I finally got around to crawling under, retainer bolt for axle side of steering stabilizer MIA.
Ordered a new one and had to wait for delivery. Once arrived, we in Indiana went through our monsoon, followed by extreme heat. I have a backup vehicle so I waited.

This morning the temps had broke, so I gathered needed tools and crawled under the JT.
Both ends of track bar were loose (less than 150 lb ft) so tightened those. Took stabilizer off and gave it a once over, had to press the sleeve back into the rubber bushing where the missing bolt was. Reinstalled stablizer, WITH Red Loctite (AGAIN) and torqued to spec.

So, long story short. Check EVERYTHING on the track bar for correct tightness, even the steering stabilizer.

So, did you test drive it?! What’s it like now?

 

[kevman65]

So, did you test drive it?! What’s it like now?

Drives like a Jeep

It's fine now. Back to what it was.
I had an idea before crawling under that it was the frame side bolt on the track bar being loose. Every time we hit a bump that specific bolt gets the brunt of it, and loosens.
But the missing bolt on the axle end of the steering stabilizer definitely didn't help things.

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