Fitment questions?
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Product details
A 12-inch titanium inboard rotor and six-piston caliper serve the specified sprint-car rear assembly. Match the splined hub and side-bell mount. This specialized rear assembly places the service brake inboard on the sprint axle. Wilwood Engineering designs and manufactures disc brake systems from its base in Camarillo, California. Bill Wood founded the company in 1977. Its range of calipers, brake rotors, master cylinders, valves, fittings and brake lines serves motorsport, street-performance and specialized applications; each part must suit the requirements of the complete braking system.
Technical Details
- Components outside the kit: hydraulic flexlines, master cylinder, complete quick-change rear axle
- Wilwood manufacturer number: 140-17792
- Kit function and position: Single rear inboard sprint brake assembly; sold as a kit.
- Intended use: Race Only. Not for Street use.
- Caliper family, piston count and finish: Forged Narrow Superlite 6R; 6 pistons per caliper; Type III Anodize
- Mount arrangement: Radial
- Supplied brake-pad material: BP-28
- Caliper piston construction: Thermlock
- Rotor diameter, width, material and face: 12.00 × 0.36 inches; Titanium; Slotted
- Inboard axle and bracket interface: 3.00-inch × 46-spline sprint axle with 3.50-inch side-bell mounting centers; dynamic hub kit included
- Brake-hose provision: Not included; supply suitable hoses and fittings separately
- Supplied installation fasteners: Included; verify the installed fastener engagement
Fitment & Compatibility
This rear inboard sprint-car assembly mounts on a 3.00-inch, 46-spline quick-change axle and the documented 3.50-inch side-bell bracket interface. The splined dynamic hub is not a wheel-stud bolt circle. Confirm rotor centering, bracket spacing, axle clamp location and adjacent driveline clearance to DS-1596. This is a specialized racing assembly rather than a vehicle-specific wheel-end conversion, and suitable hydraulic plumbing must be provided separately.
Wilwood product specifications · Wilwood installation and compatibility information · Wilwood installation and compatibility information
PMB Performance brings over 20 years of parts and fitment experience to component selection. Share the spline dimensions, side-bell mounting centers and inboard rotor alignment so we can help check the configuration before ordering.
Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.
