It depends on which TC you have:
Quote:
Transfer Case,NVG 261, 263.....GLS[4]
Synthetic Automatic Transmission Fluid
Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)
Transfer Case,NVG 149.....GLS[4]
Synthetic Automatic Transmission Fluid
Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)
Transfer Case,NP241, NP243.....GLS[4]
Synthetic Automatic Transmission Fluid
Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)
Transfer Case,NVG 236, 246.....SLF[5]
No AMSOIL Product Recommendation