I had a RC 2.5" lift/leveling kit installed on my 14 Sierra and know I have a bad vibration when I accelerate quickly, especially when going over 55 mph and have to accelerate. I had the alignment done after the install and I have the stock tires and rims still on the vehicle. Dealer will not even look at it because of the lift. I hate to have to remove the lift, but I do not want to cause drive-line issues. Has anyone else experienced this problem? If so, how did you get rid of the vibration?
Thank you in advance for any advice given.