Brand: Wilwood Disc Brakes
Manufacturer's Part Number: 140-12435-D
Part Type: Disc Brake Kits
Product Line: Wilwood Forged Narrow Superlite 4R Big Brake Rear Brake Kits
Automotive Fittings Part Number: WIL-140-12435-D
UPC: 889545016390
Position: Rear
Front Rotor Included: No
Brake Rotor Bolt Pattern (in.): 5 x 5.75 in.
Brake Rotor Bolt Pattern (mm): 5 x 146.05mm
Differential Case Design Type: Strange
Axle Housing Flange Style: Strange Engineering Floater (3.030 in. x 1.75 in.)
Rear Rotor Included: Yes
Rear Rotor Style: Cross-drilled/Slotted surface
Rear Rotor Construction: Vented
Rear Rotor Diameter: 12.88 in./327.15mm
Rear Rotor Thickness (in.): 1.10
Front Caliper Included: No
Rear Caliper Included: Yes
Rear Caliper Piston Quantity: Four
Rear Caliper Material: Forged billet aluminum
Rear Caliper Color: Black
Brake Pads Included: Yes
Friction Material Name: BP-10
Parking Brake Provision: Yes
Parking Brake Style: Internal drum
Minimum Recommended Wheel Diameter (in.): 17 in.
Offset (in.): 3.490 in.
Front Spindles Included: No
Master Cylinder Included: No
Brake Booster Included: No
Remanufactured: No
Brake Hoses Included: No
Quantity: Sold as a kit.
Description:
Wilwood Forged Narrow Superlite 4R Big Brake rear brake kits are the engineered match for the AERO6R/ST front race kits on vehicles intended for unrestricted road race competition. All emphasis is on matched front to rear balance, high durability, and high-efficiency heat management, without adding unnecessary rotating or unsprung weight to the driveline and rear suspension. Wilwood Forged Narrow Superlite 4R Big Brake rear brake kits are championship-proven systems.

Features and benefits:

* FNSL4R/ST calipers use a forged aluminum body and feature a Type III Mil-Spec, medium gray color hard anodized finish that provides superior wear resistance in the piston bores, and high resistance to abrasion and corrosion throughout
* Thermlock pistons are used to reduce heat transfer from the pads to increase fade resistance, and extend service life by decreasing temperatures in the caliper body, fluid, and seals
* Internal damper springs and controlled retraction, high-temperature piston seals assure consistent pedal height from start to finish
* Caliper piston volumes are matched for full compatibility with the OE master cylinder output and ABS controls
* Calipers are also fully compatible with manual brake conversions to balance bar pedals using appropriately sized master cylinders.
* Spec 37 alloy GT Series directional vane 13 in. rotors are dynamically mounted using Wilwood Dynamic Lug Mounting system to forged aluminum hats
* Hats are hard anodized for superior wear resistance and extended service life at the load bearing surfaces
* Mounting brackets include all premium grade fasteners and secure the calipers to the uprights in the stock location with no modifications required
* High-temperature, high-friction, race compound pads selected specifically by application