Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > 911 & 912 (1965-1989) > 911 1987-1989 3.2L G50 > Suspension & Axle >

Spring Plate

Spring Plate

Filter by brand
DISPLAYING 33 to 37 (of 37 products)
1 2 3
Spring Plate Wrench Porsche 911 and 914-6 - S-08022, T11
5
Spring Plate Wrench Porsche 911 and 914-6
Special Offer
T11
Product Information
Product Information
Spring Plate Wrench.

rennline

Fits
Porsche 911 1964 - 1989
Porsche 914-6

Combining 24mm and 36mm wrenches, the Rennline Spring Plate Wrench was designed to be slim enough to reach those tough places between the spring plate and the frame.
Manufactured from tool steel, the wrench holds up under heavy use while it's slim size solves a common problem with spring plate installation.
Compatible with Rennline Adjustable Spring Plates.
Spring plates rear RSR 935 style set Porsche 911 / 930 Turbo - 91133300905, 91133300902, 911333009XX, 90133300309, 90133300307, 2180000
2
Spring plates rear RSR 935 style set Porsche 911 / 930 Turbo
2180000
Product Information
Product Information
RSR 935 Rear Spring Plate Set For Porsche 911 / 930 Turbo

Fits:
Porsche 911 1966-89 with rear coil overs
Porsche 930 Turbo
Porsche 912's with rear coil overs

Features & Quality
Our coilover-only spring plate system has the added features and thoughtful engineering you expect from Elephant Racing.
Rubber Seals

Rubber seals keep water and contaminate out of the oversized precision rod ends. Seals are critical to extend rod end life for both racers and street cars. Racers have the occasional "agricultural excursion", covering the suspension with grit and dirt that accelerates wear of unsealed rod ends. Street cars have occasional exposure to water when washing or in rain. Rubber seals are key to long life.
Build Quality

Skillful TIG welding and machined radius on the plate. Hard anodize burgundy aluminum parts are tough, attractive and look good on most any color car. Top quality materials throughout.

Hardened alloy steel blades and aircraft grade aluminum to handle even high HP turbos.

Precision, Oversize rod end – For long trouble-free performance.
Ease of adjustment

Drilled hole positively defines plate length ensuring proper thread engagement at double adjuster and rod end, preventing accidental over-extension possible with double-slotted designs.
Two Height Settings

Choose stock height or 1 inch raise for anti-squat geometry (requires matching raise of trailing ar

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

2180000
91133300905
91133300902
911333009XX
90133300309
90133300307
2180000

The product you are viewing cross references to these numbers
Standard rear spring plate. Porsche 911 1987-89 with G50 gearbox - 91133300902, 91133300906, PS8868 - PS8868, PR08024P, 1650250500
2
Standard rear spring plate. Porsche 911 1987-89 with G50 gearbox
Special Offer
91133300906/1
Product Information
Product Information
Standard rear spring plate.
2 Required per car. Price is EACH

Fits:
Porsche 911 1987 to 1989 with G50 Gearbox
Porsche 911 turbo 1989 with G50 Gearbox

Replace the rusty, worn, rear spring plates with this new item.
Spring plates and bushes are designed for standard road use

Click 'Zoom in' for large parts diagram.
Diagram Ref No. 16

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

91133300906
91133300902
91133300906
PS8868

The product you are viewing cross references to these numbers
Uprated Rear Spring Plate, With G50 Gearbox. Porsche 911 1987-89 - 91133300906/2, 91133300902, 91133300906 - PR08008P
5
Uprated Rear Spring Plate, With G50 Gearbox. Porsche 911 1987-89
91133300906/3
Product Information
Product Information
Uprated Rear Spring Plate, With G50 Gearbox.
Upgrade your Porsche’s suspension precision with this Uprated Rear Spring Plate, designed specifically for G50 gearbox-equipped Porsche 911 models (1987–1989). This enhanced spring plate replaces the factory unit with a stronger, stiffer design that improves rear suspension control and geometry accuracy.
Sold Each.
x2 Required Per Car.

Fits:
  • Porsche 911 1987-1989 3.2L G50

Diagram Ref No 6

What This Product Does:

  • The uprated rear spring plate connects your Porsche’s torsion bar to the rear suspension arm, transferring spring tension into the chassis. It controls ride height, rear camber, and toe, and ensures the suspension geometry remains stable under load.
  • The “uprated” design improves on the original factory plate by using stronger materials and stiffer rubber bushes, reducing unwanted flex and maintaining alignment during hard cornering, acceleration, and braking.
  • For Porsche 911 models equipped with the G50 gearbox (1987–1989), this version ensures perfect fitment with the later rear suspension layout and provides a more precise, performance-focused response.

Symptoms Of A Worn Or Failing Spring Plate:
  • Uneven or Unstable Rear Ride Height – The car may sit lower on one side or show inconsistent ride height after bumps.
  • Poor Handling or “Rear-End Float” – The rear feels loose or unpredictable when cornering, braking, or accelerating.
  • Excessive Noise or Clunking – You may hear knocks or creaks from the rear suspension as the bushes wear or the plate moves.
  • Excessive Tire Wear – Incorrect geometry from worn plates can cause uneven rear tire wear, especially on the inside edge.
  • Vibration or Instability at Speed – Worn bushes can allow unwanted movement in the rear suspension, affecting high-speed stability.

Why Replacement With Uprated G50 Versions Matter:
  • Restores Geometry Precision: Keeps torsion bar alignment correct, maintaining stable camber and toe under load.
  • Improves Handling: Firmer bushings and stiffer construction minimize flex, improving cornering response and balance.
  • Eliminates Rear-End Slop: Reduces play and movement in the suspension for a tighter, more connected driving feel.
  • Enhances Durability: Modern uprated materials resist corrosion, fatigue, and aging better than the originals.
  • Essential for Restorations & Performance Builds: Ensures suspension performs at its best when upgrading shocks, torsion bars, or ride height.



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

91133300906
91133300906
91133300902
91133300906

The product you are viewing cross references to these numbers
Uprated rear spring plate. Porsche 911 1987-89 with G50 gearbox - 91133300906/2, 91133300902, 91133300906 - PR08008P
2
Uprated rear spring plate. Porsche 911 1987-89 with G50 gearbox
Special Offer
91133300906/2
Product Information
Product Information
Uprated rear spring plate.
2 Required per car. Price is EACH

oematch

Fits:
Porsche 911 1987 to 1989 with G50 Gearbox
Porsche 911 turbo 1989 with G50 Gearbox

Replace the rusty, worn, rear spring plates with this new item.
Spring plates have harder bushes, designed for fast road, performance use.

Click 'Zoom in' for large parts diagram.
Diagram Ref No. 16

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

91133300906
91133300906
91133300902
91133300906

The product you are viewing cross references to these numbers
DISPLAYING 33 to 37 (of 37 products)
1 2 3
Also found on these pages
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.

You may also like
Popular Models