Guys, there is a 7.5" 3.73 rearend (I believe it's a posi.) at Taylors junk yard on St. Charles Rock Road in St. Louis. It's in a white 87 Monte Carlo SS. Don't know if anybody wants / needs it but it was there on Saturday 7/21/07. The 7.5" rearend is for lower horsepower cars - 300 or less. But, you could get it cheap. There isn't much left of the car so you better get there.
Craig
Craig