I replaced mine back in 2011 (PJF4x4) 1(877)424-0330 Dorion qc it came from PSC motorsport in Texas Part nr SG400.. the part back then was under $650 w/hose kit (HK200)
They both have a webpage you might want to phone them and get more details.. figuring pricing probably is higher now.... But its a very good box heavy duty..
Also try "CARID" there a sponsor on this site

 

I replaced mine with a 1999 durango gear box from parts avatar in brampton ont. direct fit in my 1997 tj. Sent my tj core back not a problem