On 1967-69 models, the steering gear should be filled with water resistant EP Chassis Lubricant that meets General Motors Specification GM 6031M.
Beginning 1970, no lubrication is needed for the life of the gear, except in the event of seal replacement or overhaul, when the gear should be refilled with a 13 oz. (368g) container of Steering Gear Lubricant (Part No. 1051052) which meets GM Specification GM 4673M, or its equivalent.
On these models do not use EP Chassis Lubricant.
See Figure 1
The steering gear is filled at the factory with a water resistant grease. Seasonal change of the lubricant is not required and the housing should not be drained. However, the lubricant should be checked and additions made, as necessary, with water resistant EP chassis lubricant. The lubricant level should be at the level of the filler plug opening on those models that have a filler plug. If not equipped with a filler plug, check and fill the steering gear as follows:
- Remove the lower and outboard cover retaining screws.
- Insert the filling device in the lower screw hole.
- Inject lubricant until it appears on the other screw hole. The gear is now filled to the correct level.
- Replace the lower and outboard cover retaining screws.
The steering gear is factory filled with a lubricant which does not require seasonal change. The housing should not be drained. No lubricant is required for the life of the gear.
The gear should be inspected for seal leakage. Look for solid grease, not an oily film. If a seal is replaced or the gear overhauled, the gear should be filled with Part No. 1051052, which is a 13 oz. (368g) container of Steering Gear lubricant which meets GM Specifications. Do not use EP Chassis Lube to lubricate the gear and do not overfill.