2014 Chevrolet Express 2500 Passenger Owner Manual - Page 279

Vehicle Care 10-29 All-Wheel Drive Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See Maintenance Schedule on page 11-3. How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface. 2. Fill Plug If the level is below the bottom of the fill plug hole, on the transfer case, some lubricant will need to be added. Add enough lubricant to raise the level to the bottom of the fill plug hole. Use care not to overtighten the plug. What to Use Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of lubricant to use. How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface. Front Axle When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See Maintenance Schedule on page 11-3. If the level is below the bottom of the fill plug hole, some lubricant may need to be added. When the differential is cold, add enough lubricant to raise the level to 10 mm (3/8 in) below the fill plug hole. 1. Drain Plug