Does anyone buy used ring and pinions?

[HummerJim]

Richmond Gear in Liberty, SC buys used ring and pinions and refurbishes them. I have a basement with three rear end gears for my old '65 GTO that I used to drag race. Some of the boxes still say Richmond Gear on them. I've been away from it for 15 years, but the freight will be expensive because gear sets are heavy and as I remember they don't pay a lot unless they are rare gear sets or in high demand.