I have a 87 GN with 61k original miles. The car is original , did all GNs have the limited slip posi rear? I had this car out a couple of months ago, I need to drive it more, I got on it pretty hard and it was 1 legged!!!! It roasted the right rear tire! I would assume that they all had a posi! I also heard that there may be a "clutch pac" , or something like that in the rear that could be bad! All help is greatly appreceiated!!!!! BTW, this is a different car that I had posted a couple of days ago! Thanks a bunch