Steering Vibrations

[Zenobian_84]

Been fighting an odd problem for a while now, but I've chalked it up to "OTS" (old truck syndrome) for a good while, but I feel it's time to find out what's going on.

 

Seems that when I get the truck going above 50 mph, and if I have the truck going dead straight down the highway, there's a shimmy in what feels to be the steering column or shaft. If I turn the steering wheel slightly, the problem goes away completely, but upon righting the truck, it's back once again. Only seems to do it around 40-60(?)

 

Not sure when this started, but I've noticed over the past 6 months or so. Was reading up in this thread (http://comancheclub.com/topic/42956-pronounced-shake-at-60mph-tires/?hl=steering&do=findComment&comment=436294), just to see if anything came near to what I was experiencing, but sadly, not much.

 

I will say that my tranny mount has seen better days, as well as my steering stabilizer. Truck is stock suspension / equipment with 235/75s on at the moment. I'm due for an alignment soon (yearly thing) but the truck drives pretty straight with no other problems. No slop in any of the other steering components, and everything else seems to check out.

 

Just for kicks, I searched any applicable TSB's on AD, but nothing came up, save for a shimmy in the steering column for MJ's with the 2.5/3-speed auto. :dunno:

[Guest]

Also forgot to add that this problem usually only occurs at startup before the engine bay gets to operating temperature. Once it does, the vibrations go away. My lack of coffee this morning made me forget important things. Ugh

[mark 39]

Sounds like steering stabilizer to me.