I test drove (2) 2015 GMC Sierra Denali's this eve, both 20" wheels, both with Goodyear tires... both vibrated, one less than the other but still apparent. So.....
I drove past a Ford Dealer, I though what the hell... I'll go in and see. I told the sales guy that I am a longtime GM guy, but disgruntled over the ride quality due to vibration on many trucks i've driven and previously owned Silverado. He says...
"Well you're going to be a Ford guy once you drive this..." Pointing to a truck I selected, a 2015 F-150 Lariat SuperCrew 4X4. It looked beautiful, double moonroof, black on black, 20" wheels (Goodyear raised white letter tires) retracting side step, loaded, and nice. It had the 3.5 v6, i'm a v8 guy but was only there to road test. The 3.5 was pretty zippy, acceleration was good, the ride was quite, then I approached my road test area. I drive this road daily, 70mph speed limit, varying surfaces such as concrete, smooth black top, some rougher asphalt. This has been my test drive strip, about 10 miles of intermittent surface. I will tell you... this F150 Vibrated WORSE than any Chevy or GMC thus far... I felt it at 60, increasing to 70, shook like crazy at 80... I heard things in the cab vibrating, rattling, and the passenger seat next to me vibrated BAD! I held my phone up steadily, not rested against anything and it's very apparent as to the vibration! (Can I post video's here, or link to youtube?)
By far the worst shaking vehicle thus far. I told the sales guy about it... "well maybe it's just the road?" NO... It's not the road! "Well Ford balances the tires at the plant, they put stickers on each wheel showing that". "Would you like to try another one"... No Thank You! I left...
I am striking out with getting a truck thus far. I have one Chevy dealer still trying to work on a truck that I want to purchase, I know the service manager went to several meetings at the GM Tech Center in Warren MI to discuss things, not just with my truck, but with others as well. I have not heard anything yet.
Sad.. the ride quality of these trucks, Ford also, with the technology that we have today... we tweaked, changed, redesigned, "improved" these trucks with young college kid designers and engineers stripping quality right out of the equation! They look good, but they ride like sh*t!