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Quartermaster Clutches

4.5" Clutch Assemblies

Let's face it, when it comes to who's winning, most often you'll find a Quarter Master clutch in the car. 

Introducing the Latest and Lightest

The new Pro 4.5" clutch has moment of inertia numbers comparable to a 5.5" 3 disc carbon fiber clutch. From the veteran 7.25" to the new standard 5.5" comes the latest in metallic clutch technology, the Quarter Master pro 4.5" clutch. The new 4.5" clutch needs less travel to achieve full release as compared to a 5.5" clutch. This results in a much quicker engagement which will be harder for the driver to control. QMI recommends that you change the release bearing hydraulic ratio to regain driveability. You should install a clutch master cylinder with a piston area of at least 25% less than what you have been running.

With a superior cover design, and an exclusive friction material compound for high torque capacity, the Quarter Master 4.5" 3 disc clutch can be used in virtually any application where the 5.5" is currently being used.

4.5 Complete Clutch

Click Here For Technical Drawing

All Clutches Use 710200 Throw Out Bearing

Click Here for Hydraulic Throwout Bearings

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4.5" Disc Pacs · 3 Disc

$284.50