Wilwood Chevy 10/12 Bolt 2.75" Offset Rear Disc Brake Kit 12.88" Rotor Drill Red

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Forged Narrow Superlite 4R Big Brake Rear Parking Brake Kit
SRP 12.88" Drilled and Slotted Rotor / Red Powder Coated Caliper

The manufacturer advises the use of some 17" or larger wheels.

• ONLY FITS:
• Chevy 10 or 12 Bolt Rear End with 2.75" Axle Offset
• Does not work on C-Clip Eliminator or Special End
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Please measure your rear end Axle Flange as well as the Axle Offset Prior to Ordering to make sure this kit will fit on your car

• Kit Includes:
• Pair of SRP 12.88" x 1.1" Drilled and Slotted rotors - Vented for proper cooling
  
  
• Aluminum Rotor Hat - Includes 5 x 4.50 and 5 x 4.75 Bolt Pattern
  
  
• NEW pair of Forged Narrow Superlite 4 Radial Mount Red Powder Coated 4 piston Calipers. Piston Area 1.96"
  
  
• Internal Parking Brake with Caliper Bracket
  
  
• Full set of Semi-Metallic pads Wilwood BP-10 Pad Compound great for street use and light track use.
  
  
• All necessary hardware (nuts bolts)
  
  
• Full Color instruction booklet

Forged Narrow Superlite 4R rear disc kits provide the ultimate Big Brake solution for popular muscle car rear axles that require a parking brake. FNSL4R four piston calipers, 12.88 two-piece rotors, and high performance BP-10 compound pads provide optimized and balanced braking to compliment front big brake upgrades on all types of custom, show and high performance street machines. The neatly hidden internal shoe system provides a clean installation with superior static holding power for parking. Optional caliper finishes and rotor designs allow builders to personalize the style and performance for every application.

Black Forged Narrow Superlite 4R Four Piston Calipers:

Caliper Highlights:
The Forged Narrow Superlite 4R (FNSL4R) is Wilwood's newest version for the venerable Superlite caliper series adds the versatility and convenience of radial mounting to this widely popular caliper group. Radial mounting simplifies adaptation and provides two planes of adjustment for accurate alignment over the disc. These calipers integrate "Big Brake" style with Wilwood's latest technology to generate big stopping power in extreme environments over a broad range of vehicle applications.

The key to the superior performance of the FNSL4R comes from the extremely durable and efficient body design. Starting at 4.9 pounds it is the product of computer generated solid modeling and FEA stress analysis technology. The most noteworthy feature of this new caliper design is the forging. Each body is stress-flow forged from premium grade aluminum alloy billets. Stress-flow forging re-aligns the metal's internal grain structure to flow within the contour of the caliper body. This process eliminates the stresses and interruptions to the internal grain structure that occur when machining a straight block billet. Simply stated, there is no better way to build a stronger aluminum caliper body.

The standard FNSL4R calipers feature one-piece stainless steel pistons. Stainless is used for its slow heat transfer properties and high resistance to corrosion. Calipers can be upgraded with Wilwood's exclusive Thermlock pistons. This multi-part piston design creates a highly efficient thermal barrier to further reduce heat transfer from the pads to caliper body, seals, and fluid. Cooler temperatures translate to longer service life and less chance for heat induced pedal fade.

In addition, each FNSL4R is equipped with SRS bridge plates. SRS plates eliminate all bridge wear caused by pad gouging and extend the service life of the caliper. The spring-loaded action of the SRS plates also eliminates pad rattle and dampens the harmonic vibrations that contribute to pad squeal. Two piece bleed screws on each end and internal fluid crossovers prevent damage from track debris and other potential damage sources. High temperature, square faced bore seals provide the largest possible sealing area and controlled piston retraction on release. The full range of Wilwood pad compounds is available to match the brake response and heat range of any competition or sports driving application.

Total Piston Area (in): 1.96

SRP Drilled and Slotted Rotor

SRP Drilled Performance Rotors feature a specially engineered directional cross drill and face slot pattern that improve brake response and pad performance throughout the entire range of light to heavy braking. The venting and cleaning action of the holes and slots will reduce pad glaze and disperse gasses and heat generated during the pad to rotor interface. The holes and slots also inhibit irregular pad compound build-up on the rotor faces resulting in smoother engagement and improved pedal response in all conditions. The material removed also contributes to lower rotating and unsprung suspension weight.

Along with the excellent performance characteristics of this rotor design, each rotor is treated with a black electro coat to inhibit corrosion on all areas of the rotor. The high tech design, classic style, and aesthetic appeal of the SRP series are the perfect finishing touches to any wheel and tire detail.

SRP rotors are available in all popular sizes used in Wilwood's Pro Series and Big Brake conversion kits. Kits in these categories designated with the drilled rotor option get the SRP as standard equipment.

• Features:
• Premium grade, heavy wall castings.
• Suitable for moderate temperature racing to street use.
• For ultimate durability in racing use comparable HD or GT rotors.
• Surface Finish: Drilled and Slotted

• Rotor Dimensions:
• Width (in): 1.1
• Diameter (in): 12.88