Wednesday, April 30, 2014
How to Remove a Spline Nut on a 1999 Oldsmobile Alero
The spline nut, also known as the axle spline nut or axle nut, is located on the threaded end of each front axle shaft. This nut holds the splined end of the axle securely inside the wheel hub. The axle nut is a 34 mm nut that is pinched in order to prevent it from loosening. Because the nut is pinched in the manufacturing process, it is not reusable. There are two types of axle nuts installed on 1999 Aleros, and both are not reusable. The first type is the older style that is black with a sheet metal cage around the nut. The new nut is a silver-colored, standard-size pinch nut. If your vehicle has the old style nut, it must be removed and replaced with the new style nut. If your vehicle has the new style nut, it must be replaced when removed with a new nut of the same style.
Instructions
Removal
- 1
Apply the parking brake and chock the rear wheels. Break the front lug nuts loose with a lug nut wrench. Raise the vehicle with a jack and slide jack stands under the frame. Lower the vehicle onto the jack stands and make sure that its secure.
2Remove the lug nuts completely, then remove the tire. Have an assistant depress the brake pedal. Attach a 34 mm socket to a T-handle bar and break the axle nut loose while your assistant is holding the brake pedal; this will prevent the wheel and hub from turning while you break the nut loose.
3Remove the axle nut the rest of the way using a 1/2-inch ratchet and your 34 mm socket. Throw away the old nut; it cannot be reused.
Installation
- 4
Thread the new nut onto the spindle by hand, then have an assistant depress the brake pedal once again.
5Tighten the nut to 173 foot-pounds with a torque wrench. Reinstall the tire and snug the lug nuts with a lug nut wrench.
6Lower the Alero back to the ground and torque the lug nuts in a criss-cross pattern to 100 foot-pounds with a torque wrench.
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