Differential lubricant level check
Note: 4WD vehicles have two differentials -one in the center of each axle. 2WD vehicles have one differential in the center of the rear axle. On 4WD vehicles, be sure to check the lubricant level in both differentials.
1. If the vehicle is raised to gain access to the plug, be sure to support it safely on jack stands — DO NOT crawl under the vehicle when only the jack supports it. Be sure the vehicle is level or the check may not be accurate. If you’re checking the front differential lubricant, remove the splash shield or rock guard, if equipped.
2. Remove the plug from the filler hole in the differential housing or cover (see illustrations).
16.2a On some models, the rear differential filler plug is on the differential cover. On this particular model, the cover must be removed to drain the lubricant
16.2b On other models, the rear differential filler plug (A) is on the side of the housing. (B) is the drain plug
16.2c Front differential filler plug (A) and drain plug (B)
3. The lubricant level should be within the specified range from the bottom of the filler hole:
4. Front axle — 0 to 1/4-inch
5. Rear axle
a) 8.6-inch axle = 3/64 to 3/4-inch
b) 9.5-inch and 9.76-inch axle = 5/8 to 1-9/16 inch
c) 10.5-inch axle = 0 to 3/8-inch
d) 11.5-inch axle = 5/8 to 3/4-inch
6. If the level is low, use a pump or squeeze bottle to add the recommended lubricant until it is up to the proper level.
7. Install the plug into the filler hole and tighten it to the torque listed in this Chapter’s Specifications.