The only way to get the surface pitting perfect is to fill the pits with filler, sand, fill, sand, prime, sand, prime, sand and paint. I was going to wait and show the rear axle from start to finish but since you asked here it is in process. As for the ride, new ball joints, bushings, and rubber isolators should make it ride as new. Remember this isn't a Lincoln, so the ride will never be like new cars.