GM Saginaw Transmission To Dana 18/20 Transfer Case Adapter Fits 1941 to 1979 CJ;GM Saginaw 3 and 4 speed transmission to Dana 18/20 transfer case;With 6 spline drive gear Advance Adapters Advance Adapters GM Saginaw Transmission To Dana 18/20 Transfer Case Adapter - 50-1000 50-1000 Transmission Adapters