One other item to be added to all of the comments above. You should wait to torque any of the suspension bolts until the weight is on the car. Maybe even bounce the rear end a couple of times, then torque them down. You don't want to get the suspension in a bind.
I know that washing and waxing my car with the present condtion of my paint is like polishing a turd.....but it's my turd and I want it polished!