2024 Chevrolet Silverado 2500HD rear end clunk

[Aroy1234]

This topic has been discussed plenty of times but I thought I would post this to potentially help somebody solve the issue with their pick-up in the future. 2024 2500hd 6.6L gas. Just hit 1000 miles. Noise can be described as a hollow clunk when turning at low speeds. It happens exactly as the rear first rear tire starts to go over the bump. I tightened the u-bolts holding the leaf springs to the rear axle. I believe the torque specification is 60ft/lbs + 130 degrees but I don’t know how you’d check that with a torque wrench without starting from scratch. All I did was use a 1/2” breaker bar and was able to comfortably get an 1/8th of a turn on all the nuts. Noise instantly went away. Luckily I used to be a technician so I crawled under the truck to diagnose it but it’s crazy to think that some people would either live with the noise or take it to the dealership thinking they bought a lemon/POS. Knowledge is power I guess! Truck has been great otherwise so no complaints. Hope this helps someone.

Edited September 21, 2023 by Aroy1234

[Pryme]

Doing that did nothing for my clunk. Same clunk. It’s the ends of the leaves where the plastic pads are. That’s where I’ve pinpointed the noise. 

[Mikwil]

2024 LT HD 6.6 gas 7400 miles,  Same issue. My dealer is adding pads between the leave springs. 

Edited March 29, 2024 by Mikwil

[Capt Bob]

Interesting.

Had that with my 18 1500 but on my 2500hd so far.

3K mileage at this posting.

[Robbie R]

Mine is also doing the same thing, really noticed it once the undercarriage was fluid filmed. Am going to try and pull it in the garage tomorrow and check u bolts. Seems to be getting worse especially after recently hauling a gooseneck trailer #4000.