2014 chevy silverado vibration issues

well I just joined the long list of suckers who didn't research the new trucks before buying so I now have the seemingly common problem of a drivetrain or tire vibration only at certain speeds and conditions. mine has a slight shimmy from 65-75mph most noticeable at 68-72mph and its mainly when slightly accelerating but tends to come and go at steady speed on smooth roads.

PLEASE NO FORD VS CHEVY BS BECAUSE FORDS SUCK TOO AND HAD THESE SAME PROBLEMS LAST YEAR THAT THEY COULDNT FIX EITHER SO THEY ARE NO BETTER, THEY JUST REDESIGNED A BUNCH OF STUFF THAT HAD ISSUES WHICH IM SURE CHEVY WILL DO AS WELL

this thread is created for chevy owners to compare notes and talk about what was done to their trucks and what worked for them or still hasn't fixed the problems.

near as I can tell its a common problem on something like 75-80% of all the new trucks and even if you don't notice it right away many notice it after putting a few hundered miles on their trucks.

there is a lot of info out there on the web about complaints but no sign its a common cause or solutions since a few things work as a fix for some but not others.

from my limited research over the past few days this my estimate of what the reports on the vibration issues are related to:

20% are fixed by the owner buying new tires of a different brand at their own expense (getting rid of the goodyear or bridgestones they come with)
30% are fixed by dealer rebalancing, realignment, and or replacing one or more tires from being out of round sometimes required as many as 6 trips to the dealer to finally be sorted out and owners still report a slight vibration that they say they can live with
10% are fixed by replacing the aluminum drive shafts (sometimes requires replacing it a second or third time to get a balanced one)
10% have the rear end gears replaced 2 or 3 times before its fixed
10% are fixed by reprograming the electronic power steering computer that sometimes freaks out on a smooth level road because it has no road input trying to make the wheels wobble and rapidly checks free play by wiggling the steering
20% are never fixed even after doing all of the things listed above and chevy has no clue whats wrong


I would like this to be a resource for chevy guys to help us all fix our own trucks since chevy has no clue what the problem is and wont try to solvre it beyond throwing a few free tire balancing and repairs your way