Well, I doubt the noise and vibration can be as bad as the original 1977 suspension. I have the original wheels, but I run 8” flakes with 255/60-15 tires. I hope to change the ride height. Right now, every time I hit a dip in the road, the body hits the tires. Probably the ride will be firmer with the solid mounts, but overall I expect a smoother ride with the new shocks and suspension.