I've had my Sierra Crew Cab since late July and noticed the vibration shortly after purchasing . It now has 8950 miles on it and its been back to the dealer twice and they don't know what to do. I bought my truck to drive not sit at the dealership . I told them to do some research before I bring it back again . Still waiting for a call. I think its time to contact the attorney general about the lemon law.
I have a set of 285/70/17 nittos on v-tec rims with about 2000 miles on them off my 05 that I got from discount tire that I'm going to try after I get the truck back from the dealer..
Bought mine in late June and for a brief second I thought I should wait and see if there are any problems, but the looks of this truck won me over.. I'm kicking myself now . Its had the tires road force balanced and no they are replacing the tires. I bought a new truck expecting it to have less problems than the 8yr old 140xxx mile truck I had. This is my second GMC truck and my first brand new one . I'm very disappointed. 2014 GMC Sierra Crew Z71 4x4