acainindy
Full Access Member
It was in December 2014 for me. If you google 2015 GMC roof cross member you should find it. Also, if you search buffeting booming noise here in the threads you will find a lengthy thread that started in late 2014. That’s how I found out about it. The change in tires helped a lot, but the ring and pinion replacement was like night and day of a difference. The old ring and pinion appeared to not have been hardened properly or the rear axle geometry was just off enough to wear it out. Once they solved it, it’s the best vehicle I’ve ever owned! I’ve had a 08 Tahoe, 09 Denali XL, 12 Chrysler 300S, the 15 Yukon, and a 17 new body style Acadia.
