1994 GMC Safari Owner's Manual - Page 242

Rear 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 "Scheduled Maintenance Services" in the Index. How to Check Lubricant 1 If the level is below the bottom ofthe filler plug hole, you'll need to add some lubricant. Add enough lubricant to raise the level to the What to Use Refer to the Maintenance Schedule to determine what kindof lubricant to use. See "Recommended Fluids and Lubricants" in the Index. All- Wheel ,Drive If you have an all-wheel drive vehicle, be sure to perform the lubricant checks described in this section. However, they have two additional systems that need lubrication. Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See "Periodic Maintenance Inspections" in the Index. 6-24