Ford transfer case. New old stock, Fits 1999-2003. F-350 ( & other ford trucks some Excursions) with 7.3L PSD automatic, electric shift on the fly. Never been out of the box, It is new from ford not rebuilt, I no longer have the truck so do not need it. complete drop in transfer case, no core charge to deal with. A good remand T-case is around $2000.00 plus shipping and a core. Make a fair offer. I would consider partial trades for .308 or 45 ACP related.