This is a Transfer Case Pump Rebuild kit for the Ford Borg Warner 1356 BW1370 Transfer Case This is Pump rebuild kit is for a 1986-90 Ford Borg Warner 1356 transfer case. This transfer case has an aluminum case and is cast "13-56". or 1989-2000 Borg Warner 1370 Transfer Case. This Transfer Case is also Aluminum and chain driven it will have a cast # of 1370 or 4401