What's a 3 series 12 bolt LSD carrier worth???

Got a 12 bolt limited slip carrier sitting around collecting dust so I'm thinking about selling it. Anyone know what the thing is worth on the open market?? I've seen these at swap meets with ridiculous prices on them. Don't want to give it away but would like a fair price for it. Anyone??

 

car or truck? any gears? 3 series is for the higher 3.73 and 411 gears right?

I may be interested

 

I sold one for $200 five years ago.
Sam.

 

I don't think 4.11 will fit the 3 series, but 3.73 will.

 

OE 4.11 gears won't fit, but there are aftermarket 4.11 gears that will. Of course with a ring gear spacer any 4 series gears will fit it.