Shamus Maguire

I have a 2015 silverado. It has been doing that since i bought it. Now i have 40k miles and i have been to 4 different dealers in 4 different states. And every one of them said it is "normal" though i dont know officially because im not tearing apart my truck. But gm is known to have issues with the limited slip diffs. Its a largely known issue. So considering that they already put out an update for my 4x4 engaging on its own it makes it hard to tell the cause and the issue. I am under the assumption that the faulty diff has led to my giant clunking and improper shifting. Because my issue started with just mild clunking. It has evolved to my transmission slipping, the clunks now jerk my whole truck. And if the roads are wet after coming to a complete stop my truck loses all traction in the rear and i slide everywhere. I have also noticed while coming down a parking garage that the back of my truck was jumping as i circled down to the bottom floor. So i think the problem started in my rear diff. And has escalated to much more than that since the mechanics at all the dealers i have been dont seem to have any mechanical aptitude.