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Rotor Hats Wednesday, February 22, 2012
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  Rotor Bolt Circle: Hat Offset: Wheel Stud Circles:   
        
 
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Rotor Bolt Circle:  12 x 10.75  Hat Offset: 0.81  Wheel Stud Circle(s):  5 Holes  on  4.72     Truck Hat - Standard
Truck Hat - Standard

Truck Hat - Standard Hat
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Truck Hat - Standard Drawing

Truck Hat - Standard Hat Drawing
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Wilwood's Truck hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Truck Hats feature strengthening ribs on a flared bell configuration for big rotor brake kits on truck, SUV, and 4WD axles with 5 x 4.72 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
3.12 4.72 / 0.59      7.2 Fixed Mount Aluminum - 0.32 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 10.75  Hat Offset: 0.81  Wheel Stud Circle(s):  6 Holes  on  5.5     Truck Hat - Standard
Truck Hat - Standard

Truck Hat - Standard Hat
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Truck Hat - Standard Drawing

Truck Hat - Standard Hat Drawing
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Wilwood's Truck hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Truck Hats feature strengthening ribs on a flared bell configuration for big rotor brake kits on truck, SUV, and 4WD axles with either 6 or 8 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
3.09 5.5 / 0.63      7.21 Fixed Mount Aluminum - 0.45 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 10.75  Hat Offset: 1.11  Wheel Stud Circle(s):  6 Holes  on  5.32     Truck Hat - Standard
Truck Hat - Standard

Truck Hat - Standard Hat
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Truck Hat - Standard Drawing

Truck Hat - Standard Hat Drawing
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Wilwood's Truck hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Truck Hats feature strengthening ribs on a flared bell configuration for big rotor brake kits on truck, SUV, and 4WD axles with either 6 or 8 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
3.42 5.32 / 0.59      7.05 Fixed Mount Aluminum - 0.25 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 10.75  Hat Offset: 1.5  Wheel Stud Circle(s):  5 Holes  on  4.72     Parking Brake Hat - Truck
Parking Brake Hat - Truck

Parking Brake Hat - Truck Hat
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Parking Brake Hat - Truck Drawing

Parking Brake Hat - Truck Hat Drawing
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These premium grade cast iron hats make it possible to use bolt-on rotors on vehicles equipped with OEM internal shoe parking brake assemblies. Each hat is a precision machined, threaded hole design for use in conjunction with through-hole mount rotors. After machining, the hats are electro-coated for corrosion resistance. Used for big rotor brake kits on truck, SUV, and 4WD axles with either 6 or 8 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
3.12 4.72 / 0.59      8.03 Fixed Mount Iron 8.28 0.45 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 10.75  Hat Offset: 1.55  Wheel Stud Circle(s):  8 Holes  on  6.5     Truck Hat - Standard
Truck Hat - Standard

Truck Hat - Standard Hat
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Truck Hat - Standard Drawing

Truck Hat - Standard Hat Drawing
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Wilwood's Truck hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Truck Hats feature strengthening ribs on a flared bell configuration for big rotor brake kits on truck, SUV, and 4WD axles with either 6 or 8 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
4.64 6.5 / 0.63      7.85 Fixed Mount Aluminum - 0.45 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 10.75  Hat Offset: 1.78  Wheel Stud Circle(s):  8 Holes  on  6.5     Parking Brake Hat - Truck
Parking Brake Hat - Truck

Parking Brake Hat - Truck Hat
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Parking Brake Hat - Truck Drawing

Parking Brake Hat - Truck Hat Drawing
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These premium grade cast iron hats make it possible to use bolt-on rotors on vehicles equipped with OEM internal shoe parking brake assemblies. Each hat is a precision machined, threaded hole design for use in conjunction with through-hole mount rotors. After machining, the hats are electro-coated for corrosion resistance. Used for big rotor brake kits on truck, SUV, and 4WD axles with either 6 or 8 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
4.63 6.5 / 0.64      7.87 Fixed Mount Iron 8.12 0.2 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 10.75  Hat Offset: 1.91  Wheel Stud Circle(s):  8 Holes  on  6.5     Parking Brake Hat - Truck
Parking Brake Hat - Truck

Parking Brake Hat - Truck Hat
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Parking Brake Hat - Truck Drawing

Parking Brake Hat - Truck Hat Drawing
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These premium grade cast iron hats make it possible to use bolt-on rotors on vehicles equipped with OEM internal shoe parking brake assemblies. Each hat is a precision machined, threaded hole design for use in conjunction with through-hole mount rotors. After machining, the hats are electro-coated for corrosion resistance. Used for big rotor brake kits on truck, SUV, and 4WD axles with either 6 or 8 lug configurations.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
4.83 6.5 / 0.64      7.87 Fixed Mount Iron 8.65 0.39 $318.60 Call (805) 388-1188

Rotor Bolt Circle:  12 x 6.75  Hat Offset: 2.12  Wheel Stud Circle(s):  5 Holes  on  5     GT Dynamic Mount Hat - Straight Bell
GT Dynamic Mount Hat - Straight Bell

GT Dynamic Mount Hat - Straight Bell Hat
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GT Dynamic Mount Hat - Straight Bell Drawing

GT Dynamic Mount Hat - Straight Bell Hat Drawing
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GT Series Dynamic Mount Rotor Hats are engineered to withstand the rigors and demands of extreme motorsports competition. Each hat is precision machined from premium grade aluminum offering high strength with low unsprung and rotating weight. Wilwood T-nuts float within the hat and provide true dynamic mounting of a standard through-hole mount rotor. The wide load bearing load surface of the T-nut and the straight through-hole mount rotors provide the most durable and accurate method of isolating potential pad engagement harmonics and the in-service thermal variations that occur between the hat and the rotor. GT Series Dynamic Mount Hats are available in a variety of configurations for use with racing hubs, flanged axles, and several OE applications. Straight bell hats are used for the 6.75" and 7.00" rotor mount patterns. Hats for the larger diameter rotor mount patterns will be the flared bell design.

NOTE & CAUTIONS:
Hat is drilled and countersunk in five places to accommodate hat to hub anchoring screws. Use 230-2482 (contains 5 qty. 1/4-28 x 1.00 Flat Head Hex Drive mounting screws)
Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
3.06 5 / 0.64      6.12 Dynamic Aluminum - 0.25 $235.38 Call (805) 388-1188

Rotor Bolt Circle:  12 x 7.00  Hat Offset: 0.35  Wheel Stud Circle(s):  5 Holes  on  4.5     Big Brake Hat - Short Offset
Big Brake Hat - Short Offset

Big Brake Hat - Short Offset Hat
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Big Brake Hat - Short Offset Drawing

Big Brake Hat - Short Offset Hat Drawing
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GT Series Big Brake Short Offset hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Threaded hole hats may also be used with T-Nuts or bobbins designed for use with specially machined slotted hole dynamic mount rotors. When used in conjunction with matched Wilwood rotor hardware kits, GT hats provide solid, reliable performance in the most demanding conditions. Short Offset Hats are for narrow space applications with offsets often less than 1.00". They are available for most rotor bolt patterns in a variety of four and five lug wheel patterns.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
2.8 4.5 / 0.58      6.18 Fixed Mount Aluminum - 0.27 $170.58 Call (805) 388-1188

Rotor Bolt Circle:  12 x 7.00  Hat Offset: 0.81  Wheel Stud Circle(s):  5 Holes  on  4.75     Big Brake Hat - Short Offset
Big Brake Hat - Short Offset

Big Brake Hat - Short Offset Hat
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Big Brake Hat - Short Offset Drawing

Big Brake Hat - Short Offset Hat Drawing
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GT Series Big Brake Short Offset hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Threaded hole hats may also be used with T-Nuts or bobbins designed for use with specially machined slotted hole dynamic mount rotors. When used in conjunction with matched Wilwood rotor hardware kits, GT hats provide solid, reliable performance in the most demanding conditions. Short Offset Hats are for narrow space applications with offsets often less than 1.00". They are available for most rotor bolt patterns in a variety of four and five lug wheel patterns.

NOTE & CAUTIONS:

Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
2.78 4.75 / 0.52      6 Fixed Mount Aluminum - 0.3 $170.58 Call (805) 388-1188

Rotor Bolt Circle:  12 x 7.00  Hat Offset: 2.02  Wheel Stud Circle(s):  5 Holes  on  4.5 ;  4.75   Big Brake Hat - Flared Bell
Big Brake Hat - Flared Bell

Big Brake Hat - Flared Bell Hat
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Big Brake Hat - Flared Bell Drawing

Big Brake Hat - Flared Bell Hat Drawing
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GT Series Big Brake Flared Bell hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Threaded hole hats may also be used with T-Nuts or bobbins designed for use with specially machined slotted hole dynamic mount rotors. When used in conjunction with matched Wilwood rotor hardware kits, GT hats provide solid, reliable performance in the most demanding conditions.Flared Bell Hats are generally used with rotor mount bolt circles of 8.38" and larger. Offsets range from 1.88" to 3.00" for rotor diameters 12.19" and up.

NOTE & CAUTIONS:
Hat is drilled and countersunk in three places to accommodate hat to hub anchoring screws used with specific Wilwood hat mount hubs. Use 230-7032 (contains 6 qty. 1/4-20 x .50 Flat Head Hex Drive mounting screws)
Center Registration Dia.: Wheel Stud Circle Dia/Stud Dia: I.D. Clearance(In.): Mount Type: Material: Shoe I.D.: Face Thickness: Price: Part Number: Purchase Information:
2.67 4.5 / 0.52  - 4.75 / 0.52    5.86 Fixed Mount Aluminum - 0.25 $170.58 Call (805) 388-1188

Rotor Bolt Circle:  12 x 7.06  Hat Offse