Hat No: 170-14910

Call (805) 388-1188
Big Brake Dynamic Lug Drive - Flared Bell
Prod #: 170-14910
Price: $277.13
Big Brake Dynamic Lug Drive - Flared Bell 170-14910
Wilwood Big Brake Dynamic Lug Drive - Flared Bell Hat Wilwood Big Brake Dynamic Lug Drive - Flared Bell Hat

Hat Dimensions
Mount Hole Type Lug
Rotor Bolt Circle (in) 12lug-7.77
Hat Offset (in) 1.370
Center Reg. (in) 2.80
Hat Type
Material Aluminum
Mount Style Dynamic Lug Mount
Finish Type III Anodize
Weight (lbs) 2.000
Bolt Circle Dimensions
Hat Bolt Circle 1 5 x 4.50
Hat Bolt Circle 2
Hat Bolt Circle 3
UPC Number
UPC 889545084368
Application Info
Application Note 2015-Up Mustang
Hat Bolt Kit Part # 300-14912
Application Note
Application Note
Big Brake Dynamic Lug Drive - Flared Bell - Product Description

Wilwood's new Big Brake Dynamic Lug Drive hats incorporate a new rotor mounting system that eliminates the rotor bolts and allows the rotors to move independently of the hats as they expand and contract through heat cycles. All thermally generated stress is removed from the rotor attachment points. The rotors stay flatter and run truer. Brake response and pedal feel remain consistent. Pad knock back and rotor drag are eliminated. The hats are no longer distorted by stresses generated by thermal expansion and shrinkage of the rotors. All problems associated with thermal distortion, including bolt hole alignment issues when trying to re-install new rotors on a previously used hat, are eliminated.

Spring-loaded, replaceable stainless steel inserts in each lug-drive slot protect the aluminum hat from wear that would otherwise be caused by loading of the stainless steel rotor against the hat when brake torque is applied. A large, single snap-ring retains the rotor in the hat, making assembly and installation literally a snap. There is no longer any need to torque or safety wire rotor mounting bolts. The already lightweight stainless alloy discs are additionally drilled to remove all unnecessary rotating weight from the driveline.

Rotor Hat Dimensions

Big Brake Dynamic Lug Drive - Flared Bell Hat Drawing Big Brake Dynamic Lug Drive - Flared Bell Hat Drawing Zoom Image
Additional Hat Dimensions
Rotor Mount Hole Size (in) N/A
Shoe I.D. (in)
Clearance I.D. (in) 6.16
Face Thickness (in) 0.28
Hat Stud Diamenter - BC 1 (in) 0.630
Hat Stud Diamenter - BC 2 (in)
Hat Stud Diamenter - BC 3 (in)
Additional Notes
300-14912 Dynamic Lug Mount Clip & Snap Ring kit are required for rotor mounting.

Wilwood Compatible Rotors

All images shown are for illustrative purposes only. Actual product received may be different than what is portrayed on the web site.
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Version: 2.96 November 19 2021