Upgrading to a rear disc brake conversion is a priority for GM truck owners looking to improve stopping power and simplify maintenance. However, the biggest drawback of most disc swaps is the loss of a functional parking brake. Relying on your transmission's pawl to hold a heavy truck on an incline is a safety risk. The EWO Cadillac El Dorado Brake Calipers provide a specialized, high-performance solution that integrates a mechanical parking brake directly into the caliper.
Designed for those who demand a parking brake caliper that actually holds, these units are engineered for reliability in the most demanding environments. Whether you are building a dedicated trail rig or a street-driven heavy-duty truck, these calipers provide the stationary security you need without compromising hydraulic performance.
Technical Product Overview and Fitment
The EWO Cadillac El Dorado Park Brake Caliper Set is a brand-new, direct-replacement solution for the front calipers originally found on ’73–’86 GM K20 and ’87–’91 GM V20 trucks. These specific GM models have long been the industry standard for 14-bolt and Dana 60 rear disc conversions due to their massive piston area and robust mounting geometry.
Because these are 100% brand-new castings, they eliminate the mechanical failures and "seizing" common with salvaged or remanufactured El Dorado parking brake caliper units. They match the original mounting pattern and size, ensuring a seamless fit with standard conversion brackets while providing the added benefit of a mechanical lever for emergency and parking use.
Features and Benefits
- 100% Brand-New Calipers: No rebuilt cores or salvaged internal components are used; every unit is built to modern manufacturing standards.
- Integrated Parking Brake Mechanism: A heavy-duty mechanical lever system provides dependable holding power independent of the hydraulic system.
- Clear Zinc-Plated Finish: Each caliper features a clear zinc coating to resist corrosion, road salt, and trail debris.
- No Core Charge: Simplifies the purchasing process and lowers the total cost of your rear disc brake conversion by eliminating core returns.
What’s Included
The East West Off Road brake calipers come as a complete axle-set kit:
- (1) Driver-side park brake caliper
- (1) Passenger-side park brake caliper
- (1 pair) D122 brake pads
- (1 pair) 7/16-20 banjo bolts with copper sealing washers
Use Case: Off-Road Reliability and Street Compliance
In technical off-road situations are more than just service brakes. When winching or parking on a steep trail obstacle, the mechanical lever provides a physical lock on the rotor that cannot be lost to a hydraulic leak. This makes it an essential safety feature for technical rock crawling and overland builds.
For street-driven trucks, these calipers ensure your vehicle stays compliant with local safety regulations that require a functioning mechanical emergency brake. The clear zinc finish keeps the assembly looking professional and prevents the mechanical pivot points from rusting, ensuring the brake is ready to engage whenever you need it.
Conclusion
The EWO Cadillac El Dorado Brake Calipers are the definitive solution for GM owners who refuse to sacrifice safety for performance. By delivering a brand-new, zinc-plated mechanical solution for the most common heavy-duty axles, East West Off Road has set a new standard for rear disc conversions.
Finalize your build with a parking brake you can depend on.
Shop the EWO Cadillac El Dorado Brake Calipers here.
FAQ
Are these Cadillac El Dorado brake calipers rebuilt or new?
These are 100% brand-new calipers. Unlike many options on the market, they contain no rebuilt components and require no core charge, ensuring all internal mechanisms are at factory-new tolerances.
Will these fit my GM K20 or V20 rear disc conversion?
Yes. These calipers are a direct replacement for the front calipers used on ’73–’86 GM K20 and ’87–’91 GM V20 trucks, which are the standard units used in most heavy-duty rear disc conversion brackets.
What is included in the EWO package?
The kit includes both driver and passenger-side calipers, a full set of D122 brake pads, and 7/16-20 banjo bolts with copper sealing washers for a complete installation.
Why is the clear zinc finish important for off road brake calipers?
Off-road vehicles are frequently exposed to moisture, mud, and debris. The clear zinc plating provides a protective barrier that prevents corrosion, ensuring the parking brake lever moves freely and the caliper maintains its professional appearance.
Do I need a core to purchase these GM rear disc brake caliper units?
No. Because these are brand-new manufactured parts, there is no core charge or exchange required. You can keep your old parts or start your build from scratch without additional fees.