When you go with a new wheel that has a deeper dish than the OEM's you are not going to get the balance like the OEM's, unless you put wheel weights on the outside lip. With the OEM rims there is not much of a lip and the spokes are so close to the outside of the wheel when they put the weights on they are close enough to the outside you'll get a better balance job. But you could have a wheel problem, I have a friend that went with some after market wheels and had some shaking going on. So he took his car to another shop to get them rebalanced and still had the problem, so he took it to yet a different shop and they came out to get him to show him how his wheel hopped on the balancer. It was a bad wheel, the center was not centered, the name brand was Ruff Racing Wheels.