Truck shudders, steering wheel vibrates

[Ge0rge]

My 2016 5.3l with 72,000 miles has developed a shuddering as I drive. If I start from a stop and accelerate normally, the truck will shudder and vibrate throughout the truck. It will vibrate the steering wheel as well. I am guessing it is a bad torque converter but am wondering what others think. Once I am at cruise speed (60mph) it is is intermittent, and flares up more when giving it normal throttle. I bought a third party extended warranty at purchase but have no idea how to use it. My friend had his 2015 silverados converter replaced last year and the dealer charged him 4k, which sounds ridiculous.

[CamGTP]

$4,000 is way too much. A new torque converter is under $300 for GM and then it's just labor and labor on that is not $3,700 to do. We'd be talking $4,000 for a new transmission with labor with a new GM transmission that is about $2,800.

 

Without driving the truck, it does sounds like a torque converter issue by what you are saying.

[Ge0rge]

The local mechanic, who I trust, said I should see if GM will do anything even though its out of warranty by 7k. His concern is that if he touches it and then they actually make right on the issue due to a  class action lawsuit, that I would get nothing. I appreciate him looking out. He did say he could install a new trans and torque converter for a price I felt was fair and it would be guaranteed for life. It really has me tempted to get it fixed by him and move on.