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Spring Plate

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DISPLAYING 1 to 16 (of 43 products)
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90133313310/1KIT
Product Information
Product Information
Rear trailing arm to spring plate eccentric bolts SET OF 4. 

  • 2 x Rear trailing arm to spring plate eccentric bolt. 90133313310
  • 2 x Rear trailing arm to spring plate eccentric bolt. 90133313305

Fits:
Porsche 911 1965-1968 2.0L / 912 SWB (F)

Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Diagram ref no 27 & 28



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90133313310
90133313309
90133313310
90133313305

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SUSPBUSHKIT/1
Product Information
Product Information
Suspension rebuild kit using standard shore bushes. . Front and Rear axles


Fits:
Porsche 911E - 1970 to 1973
Porsche 911T - 1970 to 1973
Porsche 911S - 1970 to 1973

Suspension bush rebuild kit using standard shore rating (not uprated)



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SUSPBUSHKIT
90133300309

The product you are viewing cross references to these numbers
91133300905/2
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Titanium Adjustable Spring Plates 
Sold as a pair

Upgrade the rear suspension performance of your classic Porsche 911 with these lightweight Titanium Adjustable Spring Plates, engineered specifically for long wheel base Porsche 911 models from 1969 to 1986.

Manufactured from aerospace-grade titanium, these high-performance spring plates combine exceptional strength with significant weight reduction, making them ideal for road, fast road, and motorsport applications.

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

Kit Contents
• 2 x titanium spring plates
• 1 x set of Superflex bushes
• 1 x bolt kit

 Designed to improve chassis response and suspension adjustability, these lightweight spring plates allow precise suspension tuning while reducing unsprung weight compared to factory steel components.

The adjustable design enables fine ride height and suspension geometry setup, helping optimise handling balance, corner weighting, and overall driving dynamics.

Weighing just 2.58kg compared to the original steel spring plates at 4.2kg, this upgrade delivers a substantial reduction in rear suspension weight while maintaining outstanding durability and rigidity.

Ideal for enthusiasts seeking a lightweight motorsport-inspired suspension solution for classic Porsche 911 builds.

Key Features

• Lightweight titanium adjustable spring plates
• Designed for Porsche 911 long wheel base models (1969-1986)
• Manufactured from aerospace-grade titanium
• Significant weight reduction over OEM steel spring plates
• Adjustable design for suspension setup and tuning
• Improves handling response and chassis dynamics
• High-strength motorsport-grade construction
• Corrosion-resistant titanium material
• Suitable for road, fast road, and track applications
• Precision-engineered lightweight suspension upgrade

Lightweight Suspension Performance Benefits

Reducing unsprung weight improves suspension efficiency, handling precision, and overall vehicle dynamics.

Weight Comparison:
• Original Steel Spring Plates: 4.2kg
• Titanium Spring Plates: 2.58kg

Benefits include:
• Faster suspension response
• Sharper steering and handling feel
• Improved chassis balance
• Better cornering performance
• Reduced rear suspension mass

This lightweight upgrade enhances both road and track driving characteristics.

Aerospace-Grade Titanium Engineering

Constructed from aerospace-grade titanium, these spring plates provide exceptional strength-to-weight performance for demanding driving environments.

Titanium offers:
• High structural rigidity
• Excellent corrosion resistance
• Reduced component weight
• Outstanding durability under load
• Long-term reliability for motorsport use

Perfect for lightweight restorations, restomods, and high-performance Porsche builds.

Adjustable Suspension Tuning

The adjustable spring plate design allows precise rear suspension setup and geometry optimisation.

This enables:
• Ride height adjustment
• Corner balancing
• Suspension fine-tuning
• Improved chassis setup
• Enhanced track-day performance

Ideal for drivers looking to optimise suspension dynamics and handling precision.

Why Upgrade to Titanium Spring Plates?

Factory steel spring plates are heavier and less suited to high-performance lightweight builds.

This upgrade provides:
• Reduced unsprung weight
• Improved suspension control
• Greater tuning flexibility
• Lightweight motorsport engineering
• Enhanced corrosion resistance and durability



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91133300905
90133300301
90133300900
90133300309
91133300900
91133300905

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91133101002GRV/1
Product Information
Product Information
Rear axle cross tube.

oematch

Fits:
Porsche 911 Carrera 72-86

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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91133101002GRV
91133101002
9113310101
91133101002GRV

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91133300900BHD
Product Information
Product Information
Bushings set with instructions:  
Includes 4x Heavy Duty rubber softness spring plate bushings  (w/ 80-85 shore A)

Outer dia: 75mm
Inner dia: 48mm
Thicknes: 42mm

Fits:
Porsche 911 1968-89
Porsche 912 1968-69
Porsche 912 1976
Porsche 930 1978-79

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91133300900BHD
91133300900BHD
91133300900
1652251110

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91133300900B
Product Information
Product Information
Bushings set with instructions:  
Includes 4x Standard rubber softness spring plate bushings  (w/ 55-60 shore A)

oematch

Outer dia: 75mm
Inner dia: 48mm
Thicknes: 42mm

Fits:
Porsche 911 1968-89
Porsche 912 1968-69
Porsche 912 1976
Porsche 930 1978-79

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91133300900B
91133300900B
91133300900
1652251110

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Special Order item
90133313310
Product Information
Product Information
Rear trailing arm to spring plate eccentric bolt.

Fits:
Porsche 911/912 1965-73

Diagram ref no 27

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90133313310
90133313309
90133313310

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90133313310/1
Product Information
Product Information
Rear trailing arm to spring plate eccentric bolt.
Price is each.

Fits:
Porsche 911/912 1965-73

Diagram ref no 27

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90133313310
9330009
90133313309
90133313310

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Special Order item
90133313305
Product Information
Product Information
Rear trailing arm to spring plate eccentric bolt.
Price is each.

Fits:
Porsche 911/912 1965-89
Porsche 911 (930) 1975-89

Diagram ref no 28

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90133313305
90133313305

The product you are viewing cross references to these numbers
90133313305/1
Product Information
Product Information
Rear trailing arm to spring plate eccentric bolt.
Price is each.

Fits:
Porsche 911/912 1965-89
Porsche 911 (930) 1975-89

Diagram ref no 28

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90133313305
90133313305

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Special Order item
90003403601
Product Information
Product Information
Rear trailing arm to Spring plate Hexagon Nut. M12x1,5

Fits:
Porsche 356 B / 356 C
Porsche 911 1965 - 1983
Porsche 911 Turbo 1975 - 1977

Diagram ref no 28.


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90003403601
90003403601
N0110208
N0110204

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Special Order item
90133110700
Product Information
Product Information
Spacer ring for rear axle.

Fits:
Porsche 911 2.0-3.0 01/63-07/77
Porsche 912 1.6 01/65-02/70

Diagram Ref No 32

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90133110700
90133315300
90133110700

The product you are viewing cross references to these numbers
90133110700/1
Product Information
Product Information
Spacer ring for rear axle.

Fits:
Porsche 911 2.0-3.0 01/63-07/77
Porsche 912 1.6 01/65-02/70

Diagram Ref No 32

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90133110700
90133315300
90133110700

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Special Order item
90133315300
Product Information
Product Information
Spring plate covers normally rust, replacing them will give you a better ride.

Fits:
Porsche 911 1965-89
Porsche 930 1975-77

Diagram Ref No. 29

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90133315300
90133315300
1652250200

The product you are viewing cross references to these numbers
90133315300/1
Product Information
Product Information
Spring plate covers normally rust, replacing them will give you a better ride.

Fits:
Porsche 911 1965-89
Porsche 930 1975-77

Diagram Ref No. 29

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

90133315300
90133315300

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90133300309/2
Product Information
Product Information
Adjustable rear spring plate.
Replace the rusty, worn, rear spring plates with this new, adjustable item. Spring plates and bushes are designed for standard road use.
Sold each, 2 Required per car.

Fits:
Porsche 911 1969 to 1986

Diagram Ref No. 16

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90133300309
90133300301
90133300900
90133300309
91133300900
91133300905

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DISPLAYING 1 to 16 (of 43 products)
1 2 3
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About Spring Plate

Porsche Spring Plates | Design911 Suspension Components for Ride Height, Alignment & Stability

Spring plates are a critical part of your Porsche’s rear suspension system, connecting the torsion bars to the trailing arms and helping manage suspension travel and ride height. They act as pivot points that absorb energy during acceleration, braking, and cornering — ensuring smooth movement and maintaining chassis balance. Properly functioning spring plates preserve suspension geometry, enhance grip, and provide the responsive handling Porsche is known for.

At Design911, we supply a complete range of spring plates and components, engineered for precision, strength, and long-lasting performance. Manufactured from high-quality steel or performance-grade alloys, our spring plates deliver exact fitment and reliable operation under all driving conditions. Ideal for servicing, classic restorations, or performance tuning, they help maintain stability, comfort, and control across your Porsche’s suspension system.

What Do Spring Plates Do?

Spring plates play a vital role in controlling the movement and alignment of the rear suspension, ensuring even weight distribution and consistent handling.

Core Functions:
• Connect torsion bars to trailing arms for proper suspension movement.
• Regulate ride height and suspension travel.
• Maintain consistent rear wheel alignment under load.
• Absorb road impact to enhance ride comfort and grip.
• Provide smooth suspension articulation for balanced handling.

In perfect condition, spring plates ensure your Porsche remains stable, comfortable, and responsive — on both the road and track.

Why Do Spring Plates Fail or Degrade?

Due to constant movement, load stress, and environmental exposure, spring plates are subject to wear and corrosion over time.

Common Causes of Failure Include:
• Corrosion or rust weakening the plate material.
• Worn bushes or mounts causing excess play and vibration.
• Fatigue cracks from continuous torsional stress.
• Impact damage from potholes or aggressive driving.
• Incorrect alignment or ride height adjustments.

When spring plates fail, you may notice uneven ride height, poor alignment, or rear-end instability — clear signs that replacement is needed to restore balance and safety.

Why Replace or Upgrade Your Porsche Spring Plates?

Replacing worn or damaged spring plates restores suspension geometry, alignment accuracy, and overall handling performance. Upgraded plates offer improved adjustability and durability — ideal for performance builds or track preparation.

Key Benefits:
• Restores correct suspension geometry and rear alignment.
• Improves ride height consistency and handling stability.
• Reduces vibration, noise, and rear-end movement.
• Available in adjustable or fixed designs for various Porsche models.
• Fits Porsche 911, 912, 914, 944, and classic air-cooled models.
• Perfect for restoration, servicing, or motorsport applications.

Design911’s Porsche spring plates combine precision engineering and long-lasting performance — ensuring your Porsche handles with the strength and stability it was designed for.

Highlights

• Premium Porsche spring plates and related suspension components.
• High-strength steel or performance alloy construction.
• Restores alignment, ride height, and suspension balance.
• Available in adjustable and performance variants.
• Suitable for both classic and modern Porsche models.
• Perfect for servicing, performance tuning, or full restoration projects.

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