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Spring Plate
By OE Match
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 912E 4CYL 1976
The OE Match Heavy Duty Rear Spring Plate Bushing Set is a firmer replacement rubber bushing kit for the rear torsion-bar suspension fitted to selected classic Porsche 911, 912 and 930 models.
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
The kit contains four heavy-duty rubber spring plate bushings, providing the inner and outer bushes required for both rear spring plates, together with fitting instructions.
Rated at approximately 80–85 Shore A, these bushes are considerably firmer than the standard OE Match version, which uses approximately 55–60 Shore A rubber. The higher-durometer construction provides more positive spring plate location and reduced unwanted suspension movement, making the kit particularly suitable for fast-road, performance and more demanding suspension applications.
The rear spring plates connect the torsion bars to the rear suspension and rotate as the wheels move through their suspension travel. Rubber bushes support the spring plates where they pass through the torsion-bar housing and spring plate covers.
As the original rubber ages, it can compress, crack, harden and deform, allowing the spring plates to move away from their intended position. Replacing deteriorated bushes helps restore accurate spring plate support, consistent rear suspension geometry and more predictable handling.
What This Product Does:
The spring plate bushings support and locate the rear spring plates within the torsion-bar housing and spring plate covers.
They are designed to:
- Support the rear spring plates.
- Keep the spring plates correctly centred.
- Allow controlled rotational suspension movement.
- Reduce unwanted lateral and vertical movement.
- Help maintain rear suspension geometry.
- Reduce metal-to-metal contact.
- Improve suspension response.
- Support more consistent handling.
- Replace compressed, cracked or hardened original rubber bushes.
- Provide firmer suspension location than standard-specification rubber.
Symptoms Of Wear Or Failure:
Possible symptoms include:
- Rear suspension squeaking.
- Creaking over bumps.
- Clunking from the rear suspension.
- Spring plates sitting off-centre.
- Uneven clearance around the spring plate cover.
- Metal-to-metal rubbing.
- Excessive rear suspension movement.
- Rear end feeling loose or imprecise.
- Reduced stability during cornering.
- Changes in rear wheel alignment.
- Uneven tyre wear.
- Suspension movement during acceleration or braking.
- Visible cracks in the rubber.
- Rubber becoming hard or brittle.
- Rubber separating from the spring plate.
- Spring plate cover showing rubbing marks.
Why Replacement Matters:
Replacing deteriorated spring plate bushings helps restore:
- Correct spring plate support.
- Consistent suspension movement.
- Proper rear suspension geometry.
- Reduced unwanted compliance.
- Improved handling precision.
- Reduced suspension noise.
- Proper clearance around the spring plate.
- More predictable rear suspension behaviour.
Choosing the heavy-duty version additionally provides firmer spring plate location for drivers prioritising suspension control and response.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133300900BHD
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 912E 4CYL 1976
The OE Match Rear Spring Plate Bushing Set is a standard-specification rubber suspension bushing kit designed to restore the mounting and movement of the rear spring plates on selected classic Porsche 911, 912 and 930 models.
Includes 4x Standard rubber softness spring plate bushings (w/ 55-60 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
The rear spring plates form an important part of the Porsche torsion-bar rear suspension. They connect the rear torsion bars to the trailing-arm assembly and move as the suspension rises and falls.
Rubber bushings support each spring plate where it passes through the torsion-bar housing and spring plate cover. These bushings allow controlled rotational movement while helping keep the spring plate correctly positioned within the suspension assembly.
Over time, the original rubber can compress, harden, crack and deform. This allows the spring plate to sit off-centre, increasing unwanted suspension movement and potentially allowing metal-to-metal contact between the spring plate and its cover.
Replacing worn bushings helps restore correct spring plate support, suspension geometry, ride quality and predictable rear suspension behaviour.
What This Product Does:
The rear spring plate bushings support the spring plates within the rear torsion-bar suspension.
They are designed to:
- Support the rear spring plates.
- Keep each spring plate correctly centred.
- Allow controlled rotational suspension movement.
- Isolate vibration between suspension and body.
- Reduce metal-to-metal contact.
- Help maintain rear suspension geometry.
- Support predictable rear wheel movement.
- Reduce unwanted spring plate movement.
- Restore factory-style rubber compliance.
- Replace compressed, cracked or deteriorated original bushings.
Symptoms Of Wear Or Failure:
Possible symptoms include:
- Rear suspension squeaking.
- Creaking from the rear suspension.
- Clunking over bumps.
- Increased rear suspension movement.
- Spring plate sitting off-centre in the cover.
- Uneven gap around the spring plate cover opening.
- Spring plate contacting the cover.
- Metal-to-metal rubbing marks.
- Rear suspension feeling loose.
- Reduced stability during cornering.
- Changes in rear wheel alignment.
- Uneven rear tyre wear.
- Vehicle wandering or feeling less settled.
- Visible cracked or deteriorated rubber.
- Rubber separating from the spring plate.
- Suspension noise during acceleration or braking.
- Excessive rear suspension compliance.
Why Replacement Matters:
Replacing worn spring plate bushings helps restore:
- Correct spring plate positioning.
- Controlled suspension movement.
- Factory-style rubber compliance.
- Reduced suspension noise.
- Reduced unwanted movement.
- Improved rear suspension consistency.
- Proper clearance around the spring plate.
- More predictable handling.
- Better foundation for accurate wheel alignment.
On a classic Porsche, replacing decades-old suspension rubber can make a significant difference to how precise and settled the rear suspension feels.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133300900B
The product you are viewing cross references to these numbers
OEMatch Spring Plate — Fit, Function, Confidence
Spring plates form a key part of the rear suspension on many Porsche models, linking torsion bars to trailing arms to control ride height, preserve alignment and manage suspension travel under load. OEMatch focuses on Porsche applications and catalogues over 4,000 part numbers and extensive cross-references to support repairs and restorations.
Understanding OEMatch Spring Plate
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original spring plate.
OE (Original Equipment) refers to parts matching original specifications for the spring plate and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM spring plate engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. In operation, a spring plate provides a pivot between torsion bar and trailing arm, helps maintain rear wheel alignment as the suspension moves, and contributes to stable ride height and handling balance. Plates are typically formed from high-strength steel or alloys and use bushes or bearings at mounting points to control movement.
Benefits Include
- Restores correct rear suspension geometry and alignment for consistent handling.
- Maintains ride height and reduces unwanted rear-end movement under load.
- Available in fixed and adjustable designs to suit restoration, service or performance use.
Why Spring Plate Wear and Fail
- Corrosion and rust that weaken the plate or mounting surfaces.
- Worn bushes or mounts producing excess play and vibration.
- Fatigue cracks from repeated torsional stress.
- Impact damage from road hazards or improper installation.
The Importance of Replacing with OEMatch Spring Plate
Replacing worn or damaged spring plates restores suspension geometry and alignment accuracy, reduces vibration and noise, and helps retain predictable handling on road and track. Proper replacement also protects related components such as trailing arms and torsion bars by removing excessive movement and restoring specified clearances, which supports safe and reliable vehicle behaviour.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances for Porsche models.
- Adjustable and performance variants available where correct ride-height or alignment tuning is required.
- Suitable for classic restorations, routine servicing and track-focused preparations.
