Porsche Spring Plate Bushing – 2" ID, Tapered OD

• • Chassis Application: Engineered strictly for early Short Wheelbase (SWB) Porsche models (1964–1968 platforms).

  • Direct Part Compatibility: Designed as a precise, direct replacement bushing for PN 5502 Adjustable Spring Plate Sets.

  • Fitment Profile: Molded to replicate original SWB housing dimensions perfectly, providing a secure, no-slip interface within the spring plate collar.




​Premium Construction

• • Material: Advanced High-Durability Elastomer. Formulated from a premium elastomer compound engineered to easily resist compression set, ozone crack degradation, and undercar chemical/oil exposure far better than standard traditional rubber.

  • Manufacturing Process: Precision-Molded. Produced using high-pressure injection molding to ensure absolute dimensional uniformity, uniform wall thickness, and a smooth surface finish for fluid, non-binding suspension pivot tracking.

  • Performance Intent: Strikes the ideal structural balance—delivering the stiffness required to lock in your rear alignment settings while preserving the compliant ride quality expected of a classic street sports car.

🏁 Porsche SWB Adjustable Spring Plate Bushing Installation & Tech Notes

Servicing vintage short wheelbase Porsche torsion bar suspension requires careful execution to avoid binding or altering the vehicle's classic handling traits:

• 🧼 Immaculate Housing Preparation: Before installing your new 9204-2 bushing, the interior of the spring plate receiver cup and the mating surfaces of the inner sleeve must be completely free of debris. Use a wire wheel or abrasive pad with brake cleaner to strip away any baked-on old rubber residue, rust, or scale. Any leftover grit inside the housing will create high-friction wear spots, which will chew through the new elastomer material and cause rapid, premature failure.

• 🧴 Use Correct Assembly Lubrication: To prevent annoying suspension squeaks and bind-induced friction, apply a liberal coating of a high-pressure, water-insoluble silicone or synthetic grease (such as marine grade or specialized polyurethane lube) to the inner diameter and outer contact faces of the bushing. Never use a standard petroleum-based chassis grease or WD-40; petroleum-based lubricants will chemically attack and break down the elastomer material, causing it to soften, swell, and disintegrate within a few months.

• 📐 Indexing the SWB Spring Plate Angle: Classic SWB Porsche models are highly sensitive to rear ride height adjustments. Take note of your original trailing arm angle measurements or use a digital protractor to set the plate to the factory-specified hanging angle at full droop before sliding it onto the torsion bar splines. Because this bushing services adjustable plates, ensure your fine-tuning eccentric bolts are centered during initial assembly to give yourself maximum adjustment sweep during final alignment.

• 🔩 Torque Hardware ONLY at Ride Height: Never torque down the main spring plate-to-trailing arm bolts or pivot mounts while the vehicle is hanging in the air on a lift or jack stands. Tightening the suspension fasteners while the suspension is at full droop locks the bushing into a twisted, pre-loaded state once the vehicle is lowered. This continuous rotational stress will instantly tear the elastomer structure during your first test drive. Always lower the car onto its wheels, settle the suspension by rocking the chassis, and then torque all hardware to factory specifications.

• ⏱️ Mandate a Professional Four-Wheel Alignment: Rear spring plate removal completely disrupts your Porsche's rear toe and camber settings. Because early SWB Porsche rear suspension layouts feature highly sensitive kinematic interactions, a professional four-wheel alignment is absolutely mandatory immediately following installation to avoid dangerous snap-oversteer characteristics and accelerated tire wear. 

What’s Included

• Single inner spring plate bushing

Warranty

Backed by a 1-year warranty for peace of mind.

86 in stock (can be backordered