What does 'unsprung' mean for a clutch disc?

An unsprung clutch disc does not have any dampening springs in its hub. This results in a very direct and immediate engagement, transferring power from the engine to the transmission with maximum efficiency. It's common in race applications where a solid connection is prioritized over street-friendly engagement.

Can I use this clutch disc on a street-driven vehicle?

No, this SPEC Stage 5 clutch disc is explicitly labeled for 'Race Use ONLY'. It is not designed for street driving and will likely result in harsh engagement, increased noise, and vibration, and may not be street-legal in your area.

What other parts do I need to install this clutch disc?

This is a replacement disc only and is designed to work with the SPEC ST635 clutch kit. You will need the corresponding pressure plate and flywheel for the ST635 kit to complete the installation.

Spec 87-92 Supra Turbo Stage 5 Clutch Kit REPLACEMENT DISC ONLY - Unsprung Race Use ONLY (for ST635)

Specifications

Brand: SPEC
Part #: STD635

Spec 87-92 Supra Turbo Stage 5 Clutch Kit REPLACEMENT DISC ONLY - Unsprung Race Use ONLY (for ST635)

Name: Spec 87-92 Supra Turbo Stage 5 Clutch Kit REPLACEMENT DISC ONLY - Unsprung Race Use ONLY (for ST635)
Brand: SPEC
SKU: spec-spec-87-92-supra-turbo-stage-5-clutch-kit-replacement-disc-only-unsprung-ra-t14-307574
Price: 295.53 USD
Availability: BackOrder

$295.53

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Spec Stage 5 unsprung clutch disc for 87-92 Supra Turbo. For race use only, fits ST635.

Key Features

Fits 1987-1992 Toyota Supra Turbo.
Stage 5 unsprung race disc.
Designed for the SPEC ST635 clutch kit.
Provides direct and immediate power transfer.
Intended for off-road race use only.

This clutch disc is designed for the 1987-1992 Toyota Supra Turbo and is intended for use with the SPEC ST635 clutch kit. It is not compatible with other clutch kits or vehicles.

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Product Details

If you're building a high-horsepower 1987-1992 Toyota Supra Turbo for serious track or drag racing, you know that the clutch is a critical component. This SPEC Stage 5 clutch disc is designed specifically for that purpose, offering a robust solution for demanding applications. It's important to note that this is a replacement disc only and is intended for race use exclusively, meaning it's not street-legal and won't provide the same smooth engagement you'd expect from a street clutch.

This Stage 5 disc features an unsprung design, which means it has no dampening springs. This setup offers a very direct and immediate engagement, transferring power with maximum efficiency to the drivetrain. It's built to handle the extreme abuse of racing, providing a solid connection between your engine and transmission. This disc is designed to work with the SPEC ST635 clutch kit, so ensure you have the corresponding pressure plate and flywheel for proper installation and performance.

Because this is a race-only component, it's not designed for everyday driving. Expect a very abrupt engagement and potentially more noise and vibration than a standard clutch. This is the trade-off for maximum power handling and direct feel on the track.