I have a fairly significant vibration felt in the steering wheel on my truck I have it back at the dealer now for the third time. The first time I took it in they said they felt the vibration and it was caused by the torque converter. The dealer put the new converter on about a week later and my vibration is exactly the same. The second time to the dealer they told me that the stock wheels needed road forced balanced. This did not fix the problem and they scratched up one of the aluminum rims. Now the truck is back at the dealer for a new rim and the next round of possible fixes for the Chevy shake.

Update from Aug 18, 2019: Since my last visit the dealer put new motor mounts on the truck with no change to the vibration but it did solve a slight vibration felt at idol Last week it was back at the dealer and they changed the transmission fluid and fixed the scratched rim with a new wheel Still no change to the vibration felt between 35 to 55 I will take it back in a week

Update from Sep 26, 2019: I am now at 22000 miles and I am still suffering with this vibration issue My dealer pulled the wheels off a brand new Chevy truck and tried them on my truck and it did not help the vibration They then took my wheels and road force balanced them again They also did lots of pico scope readings and told me the truck is within specs I called GM the other day and was told to take it to a different dealer for a new opinion so I am taking it in tomorrow morning and GM said they will call me Saturday to check on my progress

Update from Feb 4, 2020: I have taken the truck to two other dealers and they both blew me off stating that the truck is in within normal range of vibration

Unfortunately, the vibration in the steering wheel was only reduced when the dealer performed a road force balance of the tires. Between 60 and 70 mph, the steering wheel has a definite and annoying vibration that comes and goes. If I had to guess, I would say that it is somewhere around 40 hz. Higher speeds produce vibration felt in the seat.

Update from Jan 7, 2020: I have taken my truck to the dealership now 4 times. The last time they kept it. I am going on 9 weeks and still counting because they can't figure out what is wrong. They have road force balanced the wheels 4 times, replaced the propeller shaft and yoke, replaced the front spindles, replaced the wheels and tires, and now are trying to replace the front struts. I started a complaint with GM since I first took it in at 3,000 miles and had it elevated to a senior advisor. Unfortunately, GM will NOT repurchase my truck or replace it despite it being in their shop for so long. When I asked how long this could go on, I got an "I don't know". When I asked who was deciding the direction the repairs are taking, I was told a different department and they are not reachable by anybody, including the senior advisor. So, BUYER BEWARE because the Chevy Shake is real and you could do what I did and sink $40K into a defect. I do have the option to contact the BBB and potentially go to arbitration, however, I am not sure I will win going the legal route.