One more question---my squeak is from the top large washer rubbing against the circular frame surround, metal-to-metal. Obviously the top of the strut is no longer centered. Does this mean that the top strut bearing needs to be replaced, along with the obvious disintegrating bushings? Are the bottom ones also known to wear at the same time?

My plan is to go ahead and purchase a complete strut rebuild kit and do both front sides. (Will tackle rear later!) Is there a one-stop US-based rebuild kit? I've seen several kits on Ebay but they all ship from China---would rather shop locally and get parts faster!