What oil for the transmission and transfer case for 1997 f250?

For a 1997 Ford F-250, the recommended oil for the transmission is typically Mercon ATF (Automatic Transmission Fluid) for the automatic transmission models, while manual transmissions usually require a 75W-90 gear oil. For the transfer case, Ford generally recommends using a fluid that meets the specifications of Mercon ATF, although some models may use a specific transfer case fluid. Always check the owner's manual for the exact specifications and recommendations for your specific transmission and transfer case type.