For what it's worth. I had the same problem a while back, steering wheel & truck shaking so bad around 35-45 mph I could barley hold on to the wheel. Checked/replaced everything I could think of (shocks, bearings, bushings, TRE's, U joints, etc) and still no luck. Finally took it to local tire...
Thanks for the explanation. I did notice a slight ping on the hwy today. I'm planning on a proper desmog & h55f this coming winter. Guess I'll just have to deal with the stumble until. At least I know now that she's capable of producing & have something to look forward to.
After searching many threads here on Mud in regards to the common 2F hesitation/lurching/bucking problem upon acceration, I ended up bypassing my EGR modulator. I did this by plugging the bottom hose & the single hose on top of the modulator. Man what a difference! Engine now performs so much...
Just finished spraying Alexseal Anniversary Silver Metallic. More of a "grayish" silver compared to the stock silver but I think it looks freaking awsome....Can't go wrong with silver.