dwallon, let me know how the Dynamat helps out with the extra noise. The spidertrax should help with the wider stance. Let me know if the wheel spacers bring the ride quality back to stock with the bigger tires.
AbeFrohman, I had a truck shop intsall my lift and wheel spacers at the same time. They charged me $200.00 for labor which also included a wheel alignment. I could've installed the wheel spacers myself, but since I was having them install the lift, they installed them for free. I am very pleased with the ride quality which did not change at all over stock. Some say the reason is because I still have the stock tires on. Once I go with a bigger, taller tire, I am sure the ride quality should change slightly.