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Porsche 911/930 Front Bearing Replacement

Step 1 - Jack Up Car

Securely jack up the car.

Car on Lift

Step 2 - Remove Wheel

Remove the wheel from the hub.

Remove Wheel

Step 3 - Remove Bearing Dust Cap

Remove the bearing dust cap using a slide hammer, a puller, and a cap bolt.

Slide Hammer Setup

Dust Cap

Puller on Dust Cap

Pull off Dust Cap

Step 4 - Separate and Hang Brake Caliper

Separate the brake caliper from the strut assembly and hang using big zip ties or a piece of cord.

BE CAREFUL not to strain the brake line.

Caliper Assembly

Open Pad Clip

Remove Pads

Remove Caliper Bolts

Hang Caliper

Calilper Hung

Step 5 - Remove Hub Nut

Using a 6mm Hex shaft, loosen the cap nut that secures the hub nut and remove the hub nut.

Hub Nut & Tools

Remove Hub Nut

Step 6 - CAREFULLY Remove Hub Assembly

Careful not to stress the brake line, pull caliper back and remove the hub assembly from the strut.

Watch out for the outer bearing and the washer as they will fall out as you remove the hub assembly.

Pull Caliper Back

Hub Removed

Caliper Hanging

Step 7 - Remove Bearing Seal

Remove the bearing seal from the back of the hub.

Bearing Seal on Hub

Pry Seal from Hub

Bearing Seal Removed

Step 8 - Remove Old Bearing and Clean Hub

Remove the old bearing and clean all the old grease from the hub.

Remove Old Bearing

Clean Hub

Step 9 - Remove Bearing Race

Tap out the old bearing races with a hammer and a punch or drift.

Tap Out Races

Step 10 - Press in New Bearing Races

Press in the new bearing races. Be careful not to press against the hub lug nut studs. Use a block of hardwood or metal to press hub.

Block of Hardwood

Hub on Press

Step 11 - Grease New Bearings and Install

Pack the new bearings with grease and line the inside of the hub with grease. Be sure you've cleaned the hub thoroughly before you begin.

Clean & Pack Bearing

Step 12 - Install New Bearing Seal

With new bearing greased and installed, clean bearing seal seat and install new bearing seal using a hammer and block of wood.

New Seal Ready

Installed Seal

Step 13 - Install Hub on Strut Assembly

Careful not to stress brake line, install hub on the strut assembly.

Hub Ready to Install

Seat Hub on Strut

Step 14 - Install Outer Bearing, Washer & Hub Nut

Using a 6mm hex key, turn the hub nut until the washer can only be move by prying on it with a screwdriver.

Rotate with Key

Pry Washer Test

Torque to 11FtLbs

Step 15 - Install Caliper on Strut

Install caliper on strut and torque cap bolts to 51 FtLbs.

Torque Caliper

Cut Hanger Line

Step 16 - Install Dust Cap

Install bearing dust cap.

Install Dust Cap

Step 17 - Install Wheel

Install wheel on hub.

Wheel on Hub