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Optimum-SR 10.4 in. twin-disc clutch/flywheel/release bearing kits continue the winning ways of a leader in driveline technology, Quarter Master. With lessons learned from racing, and with the data from extensive drivability testing, Optimum-SR clutches are available for street use. The se lighter-than-stock clutches feature a spring designed to require only a 10 percent increase in pedal effort over stock, with stock-type modulation control, and they are capable of handling 1400 hp and 1000 lbs.-ft. of torque. Features include: * Sprung hub, marcel-type discs with organic rag-type friction for smooth engagement * Vented floater plate and grooved friction surfaces provide better cooling * Aircraft-grade bolts and hardware * All-billet construction * Completely re-buildable * Can be used with OE hydraulic bearing systems or Quarter Master Tri-Lite II hydraulic release bearings
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$3,287.66
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$4,814.91
Quarter Master steel driveshafts feature unsurpassed strength and smooth, vibration-free performance. Built from durable, quality steel, these driveshafts are matched with ultra-durable slip yokes and U-joints to ensure a perfect driveshaft combination. Move your driveline forward with high-quality steel driveshafts from Quarter Master.
( 1 )
$453.41
Best the rest with aluminum driveshafts from Quarter Master. What makes them better? Quality material selection, rigid tolerances, careful attention to detail during assembly, and a balance spec to less than .125 in.-oz. are what set these driveshafts apart from the rest. Quarter Master's weld-free assembly process eliminates distortion and loss of heat strength. The assemblies are computer-balanced for smooth, vibration-free performance. Get performance by design with lightweight Quarter Master aluminum driveshafts.
( 2 )
$400.07
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$428.84
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