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Rear V-shape wishbone (rear lower control arm) is the replacement for the Porsche 911 (993) rear axle. It locates the rear hub, controls toe/camber under load and carries the ball-joint and bushing interfaces that keep rear suspension geometry precise. Replace worn or damaged arms to eliminate play, restore crisp handling and correct abnormal tyre wear.
Why replace the wishbone?
- Worn bushings or a failing ball joint introduce free play — the car feels vague under braking/cornering and can develop a shimmy.
- Corrosion, impact damage or bending (kerb or track incidents) will change suspension geometry and lead to rapid/uneven tyre wear.
- Old arms allow unwanted deflection; replacing them restores factory kinematics and improves driver feedback, especially important on lowered or high-mile 993s.


- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Common issues / failure modes
- Ball-joint wear — ball joints loosen or develop play; when they go the arm must be replaced or re-balled.
- Bushings deteriorate — rubber bushings crack, get soft or collapse, allowing alignment drift and tyre cupping.
- Corrosion / fatigue — especially on UK/EU cars exposed to salt; can lead to seam rust or metal fatigue on older arms.
- Bent arm from impacts — an arm that’s been hit will change toe/camber and should be replaced, not straightened.
This part number has been superseded from previous numbers:
- 99333104100 (LEFT) / 99333104200 (RIGHT)
- 99333104101 (LEFT) / 99333104201 (RIGHT)
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97



