Wilwood FNSL Rear Big Brake Kit 140-16165 - 12.88in Rotor, EPB, GM 12-Bolt 2.75in Offset
This Wilwood Forged Narrow Superlite (FNSL) rear big brake kit is built for a GM 12-bolt rear axle housing with 2.75in offset, using a 12.88in rotor. An integrated electronic parking brake (EPB) is included.
- Caliper: Wilwood Forged Narrow Superlite (FNSL)
- Rotor: 12.88in, rear
- Axle fit: GM 12-bolt housing, 2.75in offset
- Parking brake: integrated electronic parking brake (EPB)
The kit includes the caliper, rotor, mounting bracket, and hardware needed for a complete rear axle installation. A larger-diameter caliper and rotor add swept area and heat capacity over a factory rear brake, which helps pedal feel and fade resistance under repeated hard stops.
Confirm fitment by year, trim, and rear axle before ordering - this kit is built around the GM 12-bolt axle flange and offset rather than a single vehicle. Free shipping on orders over $75 to the lower 48 states (Alaska, Hawaii and U.S. territories pay calculated shipping), 30-day returns.