$200 plus shipping.
As the title says i've got an R160 w/ 3.9, Open diff. It was supplied with my 6-speed swap from a vendor on here. It was removed to track down some gear noise (wasn't it). I put at least 500 miles on it with my swap with no problems.
The input flange will need re-torqued since it was swapped over. Its an R160 flange.
It does have a small amount of play in the gear mesh. It is worth double checking for play. I think the input seal had A tiny amount of seepage and there is a broken bolt head on the left side. It will need a new gasket on the cover. Thats all.
Shipping will be fairly high because its heavy. I ship from work so there won't be any middle man getting paid. Or pickup in Chambersburg,PA.