It seems someone else must have really wanted the one in my car because when i was under it a few months ago it was missing the rear drive shaft! After researching it a little more I think they must have made a mistake because I believe mine was a single unit. Its a early 98"m.y. 03/98 and the VIN ends in W2489459. I hope they got the wrong one, but never the less I need to replace it soon. Any info would help. mdurham002@zoomtown.com