I found this thread in a search for "steering wheel vibration" or "steering wheel shake" not sure what I actually typed now.

I went off road today, first time on rough gravel roads and 2 track dirt in quite a while. I felt like I could feel every large piece of gravel on the road through the steering wheel. I think I could even hear the steering column at times.

Last week had the front axles replaced due to bad boots, steering sway bar bushings replaced, ball joints inspected that they said looked good and asked if I'd had them replaced already since they looked so good, new brake pads and rotors, and front end alignment. Had the wheels balanced a couple weeks ago and everything's smooth on the road.

I think it's in the steering somewhere. I went through all the 4WD settings today, 4 high, 4 low, VSC off, Downhill assist on, everything seems to be working good as new except the steering wheel vibration./shake. Feels like something's loose in the steering column.

These things don't have a sideways mounted shock absorber type steering stabilizer do they? Every other 4x4 I've owned did, Nissan P/U, Cherokee, F150. While driving today, the 4Runner felt like it needed one. Can they be added?