GM 14 bolt rear disc brake conversion kit including rotors, calipers, and hardware on a white background
Close-up of a vehicle wheel with GM 14 bolt rear disc brake kit in use
Close-up of a 3/4 ton disc brake upgrade kit for 14 bolt axle on an axle in a garage
Close-up of a heavy duty rear disc brake kit for off-road rigs on an axle
GM 14 bolt rear disc brake conversion kit including rotors, calipers, and hardware on a white background
Close-up of a vehicle wheel with GM 14 bolt rear disc brake kit in use
Close-up of a 3/4 ton disc brake upgrade kit for 14 bolt axle on an axle in a garage
Close-up of a heavy duty rear disc brake kit for off-road rigs on an axle

Crane Axle GM 14-Bolt Rear 3/4-Ton Disc Brake Conversion Kit

WA01033

$489.99
/
Shipping calculated at checkout.

Upgrade your GM 14-bolt rear axle by replacing the heavy, outdated factory drum brakes with a clean, reliable ¾-ton disc brake setup. This conversion kit provides a noticeable improvement in braking power, cooling efficiency, wheel clearance, and overall ride quality. Designed to weld directly onto 3.50" axle tubes, this kit fits GM 14-bolt rear axles and many other applications using the same tube size.

Includes:

  • (2) Weld-On 3/8" Caliper Brackets (with gussets)
  • (2) GM 3/4-Ton Calipers
  • (2) GM 3/4-Ton Rotors
  • (1) Set of Brake Pads
  • (16) 9/16"-18 Wheel Studs
Specifications 
  • Fits GM 14-Bolt Rear Axles
  • Compatible Tube Diameter: 3.50"
  • Bracket Material: 3/8" High-Strength Steel
  • Bracket Style: Weld-on with integrated gussets for caliper stability
  • Kit Weight Savings: Significantly lighter than factory drum brakes
  • Wheel Compatibility: Fits most 15" steel wheels
  • Rotor Style: GM 3/4-Ton
  • Caliper Style: GM 3/4-Ton
  • Hardware Included: Yes
Fitment 
Make Model Year Range Axle Application
Chevrolet C2500 1973–2000 GM 14-Bolt Full-Float Rear Axle
Chevrolet K2500 1973–2000 GM 14-Bolt Full-Float Rear Axle
Chevrolet C3500 1973–2000 GM 14-Bolt Full-Float Rear Axle
Chevrolet K3500 1973–2000 GM 14-Bolt Full-Float Rear Axle
GMC C2500 1973–2000 GM 14-Bolt Full-Float Rear Axle
GMC K2500 1973–2000 GM 14-Bolt Full-Float Rear Axle
GMC C3500 1973–2000 GM 14-Bolt Full-Float Rear Axle
GMC K3500 1973–2000 GM 14-Bolt Full-Float Rear Axle
  • Fits GM 14-Bolt rear axle applications
  • Compatible with 3.50" axle tube diameters
  • Compatible with most 15" steel wheels
  • Uses common GM 3/4-ton brake rotors and calipers
  • Designed for off-road, rock crawler, race, and custom axle applications
Tech Insight 

Upgrading from drum to disc brakes on a 14-bolt axle completely changes braking performance, especially under high heat, heavy loads, or off-road abuse. Disc brakes cool much faster, resist fade, and maintain consistent pad-to-rotor contact throughout pad life. Removing the bulky drum assemblies also reduces unsprung weight, improving suspension response and shock performance. The laser-cut 3/8" brackets provide excellent caliper alignment and repeatable installation accuracy.