What is the main difference between this Stage 1 clutch and the factory clutch?

The SPEC Stage 1 clutch uses a high-performance friction material that offers improved engagement and a higher torque capacity compared to the stock clutch. It's designed to feel more direct during shifts while still maintaining good drivability for everyday use.

Does this clutch kit include a new flywheel?

This clutch kit includes the clutch disc, pressure plate, and release bearing. It does not include a new flywheel. It is recommended to resurface or replace your existing flywheel during installation for optimal performance and longevity.

What is the break-in procedure for this clutch?

SPEC recommends a break-in period for their clutch kits to ensure proper mating of the friction surfaces. Refer to the manufacturer's installation instructions included with the kit for the specific break-in procedure, which typically involves a period of gentle driving without hard acceleration or slipping.

2005-2007 Ford Mustang Clutch Kit | SPEC SF661

Name: Spec 05-07 Ford Mustang 4.0 L Stage 1 Clutch kit
Brand: SPEC
SKU: spec-spec-05-07-ford-mustang-4-0-l-stage-1-clutch-kit-t14-16586
Price: 518.17 USD
Availability: BackOrder

Spec 05-07 Ford Mustang 4.0 L Stage 1 Clutch kit

$518.17

On Backorder

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

Fits 2005-2007 Ford Mustang 4.0L. SPEC Stage 1 Clutch Kit SF661 for improved engagement.

Key Features

Fits 2005-2007 Ford Mustang 4.0L.
SPEC Stage 1 clutch kit with improved engagement.
Features a high-performance friction material for better grip.
Designed to handle daily driving and spirited use.
Well-built components for reliable performance.
Includes necessary parts for a complete clutch replacement.

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Product Details

This is the SPEC Stage 1 Clutch Kit, part number SF661, specifically designed for the 2005 through 2007 Ford Mustang equipped with the 4.0L engine. If you're looking to replace a worn-out clutch or want a more robust engagement for your Mustang, this kit is a solid option. It's built to handle daily driving while offering a noticeable improvement in how the clutch engages compared to the stock unit.

The Stage 1 clutch from SPEC uses a well-built, high-performance friction material that balances drivability with increased holding capacity. This means you get a clutch that feels good underfoot for everyday use but can also handle a bit more torque and spirited driving without slipping. The kit includes the necessary components to get your Mustang's drivetrain back in top shape, ensuring smooth power transfer from the engine to the wheels. SPEC has a reputation for making reliable clutch components, and this Stage 1 kit is a popular choice for Mustang owners looking for an upgrade that doesn't compromise too much on comfort.

When installing this clutch kit, it's important to resurface or replace your flywheel to ensure proper clutch engagement and longevity. Always refer to the manufacturer's installation instructions for the most accurate procedure, including any specific torque specifications or break-in periods. This kit is designed as a direct replacement for your factory clutch, making the installation process straightforward for a qualified mechanic.