Sodium based grease is not compatible with lithium based grease. Read the package labels and be careful not to mix the two types. If there is any doubt as to the type of grease used, completely clean the old grease from the bearing and hub before replacing.
Before handling the bearings, there are a few things that you should remember to do and not to do.DO the following:
Do NOT do the following:
Only the rear wheel bearings require periodic maintenance. A premium high melting point grease meeting such as NLGI No. 2 or equivalent must be used. Long fiber type greases must not be used. This service is recommended any time the rear brake drum is removed.
- Raise and support the vehicle safely.
- Remove the wheel bearings.
- Clean all parts in a non-flammable solvent and let them air dry.
Only use lit free rags to dry the bearings. Never spin-dry a bearing with compressed air, as this will damage the rollers!
- Check for excessive wear and damage. Replace the bearing as necessary.
- Packing wheel bearings with grease is best accomplished by using a wheel bearing packer (available at most automotive stores). If one is not available they may be packed by hand.
- Place a healthy glob of grease in the palm of one hand and force the edge of the bearing into it so that the grease fills the space between the rollers and the bearing cage. Do this until the whole bearing is packed.
- Place the packed bearing on a clean sheet of paper until time for installation.
- Install the wheel bearing.
Refer to Suspension & Steering of this repair guide for information on servicing wheel bearings.