AUJeeper

I had the same problem on my 2015. Went to the dealer and the confirmed it was the spring noise, but would not fix repair under warranty because I had a leveling kit installed. Made me chuckle-truck has 30,000 miles and sounds terrible when turning or going over bumps-especially if towing a trailer. I tried greasing the springs and that didn't work. I added the bicycle inner tubes, and that helped, but I still had some noise(I was probably paying more attention to it than I should have been though). I decided to replace the springs and saw recommendations for Deaver Springs in Santa Ana, CA. I made the leap and purchased them. Took 4 weeks to make and a week to ship to me in Florida. The install was much more of a challenge than I had anticipated-you have to remove the hitch to get the rear shackle bolts out which wasn't bad, but to replace the drivers side spring you have to drop the fuel tank. Very pleased with the ride of the springs, and finally no noise. The Deavers are expensive-$900 and I can't tell you if they are any better than the multi leaf springs you can buy elsewhere. I ordered mine with a 3" lift as I am running Fox Coil overs in the front. I initially didn't install with the factory blocks, but that made it sit level and I like a bit of a rake so I ended up adding the blocks back. Note that the top plate that holds the U bolts doesn't come with the new springs so you have to remove it from your factory springs and install on the Deavers. Hope this helps anyone considering replacing their springs. Deaver 1 Deaver 2

Correct. My 2015 has the 6.2 and the 8L90. The repair has made a huge difference. All of the erratic shifting I thought was ''Normal'' is now gone

To close out my earlier post- Picked up my truck today and it drives better than it ever has. Replaced the torque converter. I asked if the torque converter was an updated part from what it came from the factory with. The service writer was not sure so he called the parts department and they confirmed it is an updated part. Invoice below in case it helps anyone

Dropped my 2015 with 6.2 and 18,000 miles off today for torque converter shudder issue. Also RPM's flare when pulling a hill, but holding throttle steady. Feels like a fish bite misfire. Love the truck and usually love the transmission, but I have had concern about mine since the first week I owned it. Same complaints as many on here have noted. Hopefully the new roque converter going in fixes it

Paid $759. Ordered them from a website called Performance Lifts-I believe they were out of California. Made it to Georgia in 3 days. They were the best price I found-Other retailers were around $850. I installed them myself and then had an alignment done at the dealership

The Fox coilover gives 2". Right when I installed it was about 2-1/2" but it settled over time. The picture looks a little nose high, but my driveway slopes up. It is dead level. It is the only adjustment I have made to the truck. May add some rear blocks as i do tow a trailer and a boat on occasion.

Installed Fox 2.0 coilovers and BFG's this weekend.