See Figures 1, 2, 3 and 4
There are only two areas which require regular chassis greasing: the front ball joint and the outer tie rod end. These parte should be greased every 12 months or 7,500 miles (12,000 km) with an EP grease meeting G.M. specification 6031M.
If you choose to do this job yourself, you will need to purchase a hand operated grease gun, if you do not own one already, and a long flexible extension hose to reach the various grease fittings. You will also need a cartridge of the appropriate grease.
Press the fitting on the grease gun hose onto the grease fitting on the ball joint or tie rod end. Pump a few shote of grease into the fitting, until the rubber boot on the joint begins to expand, indicating that the joint is full. Remove the gun from the fitting. Be careful not to overfill the joints, which will rupture the rubber boots, allowing the entry of dirt. You can keep the grease fittings clean by covering them with a small square of tin foil.
This is a good opportunity, while under the vehicle, to check for any tears or holes in the axle CV-joint boots, which may cause lose of or contamination of the axle grease. Damaged boots must be replaced as soon as possible or joint failure could result.