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How to Change the Rear End Grease in a Chevrolet

There are two types of gear lube to use in your Chevrolet, conventional lube and synthetic lube. Synthetic lube is more expensive than conventional oil but it improves fuel mileage. Gear lube may need to be changed if it becomes contaminated by metal debris. The technical name for a vehicles "rear end" is the rear differential. The rear-end grease, which is extremely thick, is called gear lube.

Instructions

1

Raise the Chevrolets wheels off the ground. Spot two blocks, one behind each rear wheel, to prevent the vehicle from rolling.

2

Place a floor jack under the center of the front cross member. Lift the front of the Chevy off the ground. Insert two jack stands, one under each side of the frame close to the wheels. Lower the jack.

3

Position the floor jack under the center of the rear differential. Lift the rear of the car off the ground. Set two jack stands, one under each axle tube. Lower the jack.

4

Place a ground mat or a piece of cardboard under the vehicle. Position the oil pan under the center of the rear differential. Locate the bottom drain plug. Insert a 1/2-inch breaker bar into the plug socket and remove it. Some rear differentials must be drained by removing the cover. Remove the bolts in the cover and drain the oil.

5

Replace the gear lube. Reinstall the drain plug in the bottom of the differential and tighten it. If you drained the oil, replace the cover and install a new gasket if needed.

6

Locate and remove the level plug. Its found near the horizontal line of the rear differential.

7

Refill the gear lube through the level hole. Fill until oil runs out of the hole. Use the manufacturers recommended oil.

8

Replace and tighten the level fill plug.

9

Position the jack under the center of the rear differential. Jack the vehicle off the stands and place it on the ground.