Upgrade the rear suspension of your Porsche 924 or 944 with this premium adjustable spring plate set. Sold as a set of two (left & right), these plates replace the standard fixed spring plates on models from the era 1978-85 (924 & 924 Turbo) and 1982-85 (944). Featuring an indexing mechanism, they allow ride height and torsion bar preload adjustments without major disassembly. Whether you’re restoring your car, fitting lowered suspension, or tuning for performance, this set provides improved rear stability, consistent geometry under load and easier setup.
Sold As A Set Of 2.
Fits:
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 944 2.5L 8V 1982-87
Diagram Ref No 22
What This Product Does:
- On torsion-bar rear suspensions, such as those fitted to the 924/944 era Porsches, the spring plate mounts the torsion bar end to the rear axle or body-subframe and helps set ride height and preload of the torsion bar.
- The “adjustable” version means that the plate includes a mechanism (often splined or stepped indexing) that allows the torsion bar end position (and thus ride height / preload / corner balance) to be changed more easily than the stock non-adjustable plate.
- It allows for more precise setting of ride height and corner balancing (especially useful for lowered setups, performance handling upgrades or restoration).
- By maintaining correct torsion bar index and mount condition, the rear suspension geometry remains stable under load, improving handling, ride quality, and tyre wear.
Symptoms & Signs You Might Need This Set:
- Rear ride height is incorrect, uneven (left vs right) or difficult to adjust — especially after replacing torsion bars or springs.
- The rear end feels loose or vague in corners, or geometry seems to shift under load – indicating the torsion bar mount may be compromised or mis-indexed.
- Tyre wear on the rear is uneven or excessive on one side or edge, suggesting rear geometry is not being maintained.
- If you have lowered the car or changed the torsion bars, but still cannot achieve expected ride height or balance without disassembly — an adjustable plate simplifies the task.
- On inspection you may find the original plates are corroded, the indexing marks are worn, bolts seized, or the plate has no adjustment capability.
Why Replacement / Upgrade Matters:
- Improves handling precision: With an adjustable plate you maintain correct ride height and torsion bar preload, which helps the rear suspension respond properly to cornering, braking and load.
- Facilitates setup and tuning: If you’re modified (lowered, wider tyres, stiffer springs) or restoring, an adjustable plate makes ride height correction much easier and more repeatable.
- Restores structural integrity: Older spring plates may be worn, corroded or lacking adjustment — replacing them renews the mount and ensures the torsion bar functions optimally.
- Better tyre wear and alignment retention: Proper indexing and mount condition reduce geometry drift, meaning longer tyre life and better consistent handling.
- Value and restoration: For classic 924/944 models, having correct suspension hardware can increase confidence and resale value.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477511201
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 944 2.5L 8V 1982-87