Overview
The G2 Axle and Gear wheel bearing kit, part number 30-8012, is for the front wheels of a 1977–1979 GM vehicle with a Dana 60 front axle. It replaces the front wheel bearings on one side.
The kit includes a Timken inner wheel bearing and race, a Timken outer wheel bearing and race, and a wheel bearing seal. It has all the parts for one side, and G2’s wheel bearing kits cover front or rear wheel bearing replacement.
Key features
- Timken inner wheel bearing and race
- Timken outer wheel bearing and race
- Wheel bearing seal
- All parts for one side of the axle
Hub and bearing service
Front bearings carry the wheel and the load of the vehicle, so the hub area should be cleaned and inspected whenever the bearings are replaced. Wipe away old grease, look at the spindle for scoring, and check the hub bore for wear before the new races go in. A seal that is pressed in square lasts longer than one driven in at an angle.
Bearing preload is set during assembly, and it is a common cause of early failure when set too tight or too loose. Pack the bearings thoroughly before fitting them, and keep grease away from the brake pads and rotor. After the first drive, feel the hub for heat and listen for noise, since both can show a setup problem.
- Clean the spindle and hub before fitting new parts
- Pack bearings evenly with suitable wheel bearing grease
- Set preload using the procedure for your axle
- Replace the seal whenever the hub is opened
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | 30-8012 |
| UPC | 631410095333 |
| Axle | Dana 60, front |
| Years | 1977–1979 GM |
| Bearings | Timken inner and outer, with races |
| Seal | Wheel bearing seal |
| Coverage | One side |
Vehicle fitment
It is for the 1977–1979 GM front Dana 60 axle. Check the axle type and model year against your vehicle before ordering, since the kit is matched by axle and years rather than by model.
Check the axle type and model year against your vehicle before ordering, since the kit is listed by axle and years rather than by model. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Inner and outer Timken bearings with their races, and a wheel bearing seal, for one side. Two kits are needed to cover both front wheels.








