NHTSA Complaint #11444182 — 2014 CHEVROLET SILVERADO 2500

the Silverado 2500hd and I think 3500 work duty pickups some don't come with a stabilizer damper for steering my 2014 work truck with only 19k miles has a shake so bad you can't drive on the highway, I first noticed the shimmer at 2 yrs the deal did alignments and said they could not find what caused it, now I took the truck in for check engine on an o2 sensor they said catalytic converter went bad and it needed alignment so I said yes to the o2 sensor and alignment then I leave the check engine light pops on and when trying to drive over 35 mph the steering wheel violently shakes back and worth, I talked to a commercial tech he said the stabilizer always goes bad on these and so does all the youtube videos but some videos show that some trucks have a stabilizer and some don't, but do have the mounting holes.