Driveshaft made by Oshkosh, P/N 3799167. Also 226025. NSN 2520-01-576-4517. Used on MRAP. Measures apprx. 52″ CL to CL of U-joints. 1610 series U-joints, Cap diameter is 1.875, and Yoke lock-up is 5.312. (Very Common.) Check your application. This is a massive propeller shaft. Get it here here and save. S0574 1WH0C 13979