Weird Noise From Front End

Dirtbiker · July 16, 2017

I have a 2016 2500 crew cab 4x4 6.0. It has 48,000 km on it. It has the torsion bars cranked 1.75 inches since new. Aftermarket wheels with Duratrac tires. Other than that it is stock. About 5000 km ago it started to make a noise that seems to be coming from underneath in the front somewhere. I notice it when the window is rolled down. It only happens between 50 and 54 km per hour. I can only describe it as a whistling/harmonics type sound. I rotated the tires recently and it never changed so it isn't a tire issue I don't think. I tried sitting in park and revving the engine but no noise. I also just had the differential and transfer case fluids changed and nothing unsual there. I took it to the dealer but they can't find anything wrong either. I was worried it may be a hub but they said no.

Has anyone else run into this issue and possibly figured out what it was?

8lugCT · July 17, 2017

video might be helpful

SMiller · July 17, 2017

Grease the front end, jack each front wheel up and shake/pull on everything.

My guess is a CV axle? You did have it allinged correct?

Dirtbiker · July 18, 2017

Yep two alignments. First one was out. Second ine was good but that was 35,000 km ago. . Will try the shake pull method

Mike Hamm · July 20, 2017

It still could be the tires. The treads are designed to try and remove as much harmonics as possible but it can still happen in the right circumstances, certain speeds being one. Not sure how easy, or practical, it would be to try this but have someone drive next to you and see if they can hear it in the lane next to you when you reach that speed.