The Chevy GMC 4x4 NP208 THM 350 / 700R4 Transfer Case Adapter 14038663 is a vintage part designed specifically for automatic transmission vehicles with a 4WD drive type. Made by Chevrolet GMC in the United States, this OEM adapter is not universal fitment and is superseded by OEM parts. Ideal for those looking to maintain the performance of their classic vehicle, this adapter is a genuine Chevy GMC part that ensures compatibility and reliability.