Spring Plate Sports Adjustable, Rear. Porsche 911 1969-86  ❭  90133300309

Spring Plate Sports Adjustable, Rear.
Upgrade your Porsche’s suspension precision with this Sports Adjustable Rear Spring Plate, designed for fine-tuning ride height and corner balance. A direct replacement, this high-quality component fits classic Porsche 911 models and allows precise adjustment of rear torsion bar preload and camber settings.
Sold Each.
x2 Required Per Car.

Fits:

• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)

Diagram Ref No 16

What This Product Does:

• Holding the torsion bar end and anchoring it to the chassis or suspension structure.
• Providing a mounting surface for the torsion bar to twist against, effectively managing the rear spring action (torsional stiffness).
• The adjustable aspect allows you to change preload, camber, or ride height for tuning the rear suspension setup to your desired performance balance (road or track)
  
• Helping maintain correct geometry as suspension moves, ensuring better tire contact, handling, and responsiveness.
  
  

Symptoms & Signs You May Need Replacement:

• Rust / corrosion / fatigue: The old plates may be rusty or weakened, especially in classic cars.
  
• Sagging or misalignment: Rear ride height may fall, or camber might drift under load.
  
• Uneven tire wear: Because geometry is off or not held firmly, the tires may wear more on one edge.
  
• Poor rear handling / unpredictable grip: The rear may feel loose under cornering or shift unpredictably under load.
  
• Difficulty setting or maintaining geometry: Without adjustability, it’s harder to dial in suspension tweaks, especially for track use or changed setups (wider tires, stiffer suspension, etc.).
  
  

Why This Upgrade Matters:
Factory spring plates offer limited adjustment. This RS-style sports version allows quick and accurate tuning of ride height, preload, and camber, giving sharper handling and better tire contact for both road and track.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90133300309

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