Magnum Knuckle Wilwood brake kit including Brake disc, calipers, and pads on a white background
Close-up of a car axle with a 2.5 ton spindle lightweight brake kit installed
Close-up of an axle with Ouverson Super 8 brake conversion installed on a dark background.
Close-up of a 14 inch Wilwood off road brake kit in a garage setting
Close-up of a Magnum knuckle 4 piston brake upgrade on a green, orange, and black axle on a gray background
Magnum Knuckle Wilwood brake kit including Brake disc, calipers, and pads on a white background
Close-up of a car axle with a 2.5 ton spindle lightweight brake kit installed
Close-up of an axle with Ouverson Super 8 brake conversion installed on a dark background.
Close-up of a 14 inch Wilwood off road brake kit in a garage setting
Close-up of a Magnum knuckle 4 piston brake upgrade on a green, orange, and black axle on a gray background

Crane Axle Magnum Knuckle Lightweight Brake Kit

WA01007

$1,599.99
/
Shipping calculated at checkout.

The Crane Axle Magnum Knuckle Lightweight Wilwood 14" Brake Kit is engineered for builders who demand maximum braking performance without unnecessary weight. Designed by Crane Axle for Magnum Knuckles and other steering big knuckles utilizing a 2.5-ton spindle with Ouverson Super 8 wheel hubs, this system combines 14-inch Wilwood slip-on rotors with lightweight aluminum hats and proven four-piston calipers for exceptional stopping power.

Compared to a traditional ¾-ton brake conversion, this package removes approximately 36.5 pounds of unsprung weight while increasing rotor diameter for greater braking leverage. The reduction in rotating mass allows the suspension to react more quickly over rough terrain while the Wilwood four-piston calipers deliver consistent clamping force for rock bouncers, Ultra4 cars, trail rigs, and other high-performance off-road applications.

Includes:

  • (2) Bolt-On Caliper Brackets with Spacers
  • (2) Wilwood 4-Piston Brake Calipers
  • (2) 14" Wilwood Slip-On Rotors with Aluminum Hats
  • (1) Set of Wilwood Brake Pads
  • Caliper Installation Hardware
Specifications
Specification Details
Manufacturer Crane Axle
Product Type Lightweight Front Brake Kit
Spindle Compatibility 2.5-Ton Spindle
Wheel Hub Compatibility Ouverson Super 8 Wheel Hubs
Rotor Diameter 14"
Rotor Style Slip-On with Aluminum Hats
Calipers Wilwood 4-Piston
Weight Savings Approximately 36.5 lbs vs. ¾-Ton Brake Conversion
Caliper Brackets Laser-Cut High-Strength Steel
Installation Bolt-On
Fitment
Component Compatibility
Steering Knuckles Magnum Knuckles and Other 2.5-Ton Spindle Applications
Spindle 2.5-Ton
Wheel Hub Ouverson Super 8

Fitment Notes

  • Designed for steering knuckles using a 2.5-ton spindle.
  • Requires Ouverson Super 8 wheel hubs.
  • Compatible with Magnum Knuckles and similar 2.5-ton spindle applications.
  • Verify wheel diameter and inside barrel clearance before installation, as 14-inch rotors and four-piston calipers require adequate space.
  • Confirm spindle, hub, rotor, and brake hose compatibility prior to assembly.
FAQ

1. Why is reducing unsprung weight important?

Removing 36.5 pounds of unsprung weight allows the suspension to react more quickly to terrain changes. Less rotating and unsprung mass helps improve ride quality, tire contact, steering response, and overall suspension performance.

2. What advantage does a 14-inch rotor provide?

A larger rotor increases braking leverage by moving the brake pads farther from the center of rotation. This allows the brake system to generate greater stopping torque with the same hydraulic pressure.

3. Why use Wilwood four-piston calipers?

Four-piston calipers apply braking force evenly across both brake pads, improving pad wear, pedal feel, and braking consistency during repeated hard stops on heavy off-road vehicles.

4. What are the benefits of slip-on rotors with aluminum hats?

Slip-on rotors simplify maintenance by allowing the rotor to be replaced without disassembling the wheel hub. Aluminum hats also reduce rotating weight while maintaining excellent strength.

5. Is this a bolt-on brake conversion?

Yes. The included laser-cut caliper brackets are designed as a bolt-on installation for compatible Magnum Knuckle and 2.5-ton spindle applications using Ouverson Super 8 wheel hubs. Verify wheel clearance and component compatibility before installation.

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