2005 Dodge Durango Owner's Manual - Page 335

MAINTAINING YOUR VEHICLE 335 fluid leaks. The use of transmission sealers should be avoided, since they may adversely affect seals. Transfer Case Inspect the transfer case for fluid leaks. If a fluid leak is evident the transfer case fluid level may be low. Have the transfer case serviced immediately. Axles Refer to Recommended Fluids, Lubricants and Genuine Parts for correct fluid type. The manufacturer does not recommend regularly scheduled oil changes for axles in vehicles whose operation is classified as normal truck service. NOTE: The presence of water in the gear lubricant will result in corrosion and possible failure of differential components. Operation of the vehicle in water, as may be encountered in some off-highway types of service, will require draining and refilling the axle to avoid damage. Rear Axle Rear Axle fluid levels should be 7/8 (22 mm) below the fill hole for 8 1/4 axles, and 1 1/4 (31 mm) below the fill hole for 9 1/4 axles. CAUTION! Damage may result from operation of the vehicle with low transfer case fluid. The transfer case fluid should be drained and refilled at the intervals specified. Lubricant Selection Refer to Recommended Fluids, Lubricants and Genuine Parts for correct fluid type. 7