Made in the USA Since 2006

Alcon Big Brake Kit, Rear (Rock Jock)

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This is the Performance Big Brake Package from Alcon for the REAR of an off road Jeep Wrangler with a Currie Rock Jock axle.

• Gains in performance over stock braking system:

- Up to 30% reduction in disc temperature rise
- Up to 26% reduction in pad work rate
- Up to 25% reduction in pedal effort


• Ductile Iron 4 piston brake caliper housing providing maximum strength and stiffness as well as high resistance to impact and fatigue
• Epoxy acrylic paint over acid zinc finish for maximum corrosion protection
• High friction pads increase stopping power
• Larger 330mm (13") diameter vented brake rotors increase brake torque and thermal capacity, reducing potential for brake fade
• Increased pad area and machined half-moon reliefs reduce temperatures and increases pad life


• High temperature seal material as used in highest levels of motorsport.
• Wiper seal on every piston for dirt exclusion.
• Fits many 17" and larger aftermarket wheels.
• Compatible with stock OEM brake booster and traction systems.
• Retains and utilizes OEM parking brake.

Oh yeah - we have tested them on our Jeeps!