I have a new (but not in box) Richmond 3.73 ring and pinion set. I bought it for my 93 z28 but I got a good deal on a posi unit so Im trying to get rid of the gears. Theyve never been installed in a car, they came right from summit and proceeded to sit in my house for the past few months. Message me for more details, Im looking to get $115 shipped for the set. Theyve been listed on z28.com for over a month and no ones bought them yet, and I was told Id have better luck here.

This is the link to the gears on summit, just to give an idea of what they cost me to buy 3 months ago.
http://summitracing.com/parts/RMG-4900071/