jeck1

Just as you said it would, the clunking noise has returned. Got new rear springs installed on Friday, today (Monday) the truck is clunking away again.

I have the same issue on my 2016 HC. Would hear clunking in the back whenever I would back into my driveway. Asked the dealer to look at it when it was in for service and they said there was a service bulletin about it and 'they tightened things up'. Problem reappeared a few days after and they have ordered new springs for me. Parts are back ordered but all covered under warranty. Sent from my Nexus 6P using Tapatalk

I agree. Plus I like the fact that there is only 1 High Country vehicle on the road. Gmc spreads the Denali line across the Sierra, Yukon and even the Acadia now.