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Cadillac El Dorado brake calipers are one of the most popular choices for rear disc brake conversions on heavy-duty trucks, off-road rigs, rock crawlers, and custom axle swaps. When converting from outdated drum brakes to modern rear discs, builders need a parking brake caliper that offers dependable stopping power, easy installation, and long-term durability. The East West Off Road brake calipers are designed specifically for demanding off-road and heavy-duty applications. Unlike rebuilt parts-store calipers that often suffer from leaks, sticking pistons, or weak parking brake performance, these EWO Cadillac El Dorado Brake Calipers are completely brand new with no core charge required. Built with a corrosion-resistant zinc coating, integrated parking brake mechanism, and direct compatibility with common GM rear disc brake conversion setups, these calipers provide the performance serious truck builders expect for both trail and street use. Why Cadillac Eldorado Rear Calipers Are Popular for Disc Brake Swaps The 1976-1978 Cadillac Eldorado rear calipers became the go-to solution for rear disc brake conversions because they combine hydraulic braking with a mechanical parking brake in one compact assembly. This makes them ideal for: GM 14 Bolt rear disc conversion Dana 60 rear disc conversion Sterling 10.25 disc brakes Chevy K20 rear disc upgrade 3/4 ton truck rear disc conversion 1 ton axle disc swap Many off-road enthusiasts prefer this setup because it maintains a functional rear disc parking brake without requiring additional drum-style parking brake assemblies. Integrated Parking Brake Mechanism One of the biggest advantages of these Cadillac El Dorado brake calipers is the built-in mechanical emergency brake system. Benefits of an Integrated Parking Brake Caliper Maintains DOT-friendly parking brake functionality Improves vehicle safety Holds heavy trucks securely on steep terrain Simplifies rear disc brake conversions Eliminates complex drum-in-hat systems This hydro-mechanical rear caliper design is ideal for: Off-road trucks Trail rigs Tow vehicles Rock crawlers Street-driven axle swaps Brand-New Calipers With No Core Charge Most aftermarket El Dorado parking brake caliper options are rebuilt units using old castings and worn internal components. Common problems with rebuilt calipers include: Sticking pistons Weak parking brake levers Internal corrosion Fluid leaks Inconsistent brake performance Worn ratchet adjustment mechanisms The EWO E63013 calipers eliminate these problems by using completely brand-new components. East West Off Road Brake Caliper Features 100% new calipers No rebuilt cores No core charge Clear zinc coated brake calipers Integrated parking brake lever Heavy-duty construction These loaded rear brake calipers are designed specifically for long-term off-road durability. Direct Replacement for Popular GM Truck Calipers These GM Dual-Bleeder JB6 Brake Caliper (Loaded) units are designed to match the fitment and mounting dimensions of: 73-86 GM K20 brake calipers 87-91 GM V20 brake calipers This allows them to work with many existing rear disc brake conversion brackets and axle swap kits. Common Rear Disc Conversion Applications GM 14 Bolt disc brake swap Dana 60 rear disc conversion Sterling rear axle disc brakes SRW 14 bolt disc brackets DRW rear disc conversion Cab and Chassis disc brake kit setups GM V20 truck brakes Corrosion-Resistant Zinc Finish Off-road trucks are constantly exposed to harsh environments including: Mud Water Salt Dirt Snow Debris These zinc plated brake calipers use a clear zinc coating designed to resist corrosion while maintaining a clean appearance. Unlike rusty rebuilt calipers, these East West Off Road brake calipers stay looking professional even after years of hard use. Complete Loaded Caliper Kit This kit includes the essential hardware required for installation. Included Components Driver-side park brake caliper Passenger-side park brake caliper D122 brake pads 7/16-20 banjo bolts with copper washers Integrated parking brake levers The included brake pads with locking nub design help prevent pad movement during aggressive braking. Large Piston Design for Better Braking Power These large piston Eldorado calipers feature a 2 15/16 inch piston size for improved clamping force and braking performance. Advantages of Large Piston Rear Calipers Increased stopping power Better brake balance Improved pedal feel More consistent braking Better control with oversized tires This makes them ideal for: Heavy-duty trucks 1-ton axle swaps Off-road rigs Towing applications Dual-Bleeder Design Improves Brake Bleeding A major advantage of these GM dual-bleeder caliper units is easier hydraulic bleeding. Benefits of Dual Bleeders Faster brake bleeding Reduced trapped air Improved pedal feel More consistent brake pressure This is especially helpful after: Rear disc brake conversions Brake line modifications Full hydraulic rebuilds Master cylinder upgrades Proper Parking Brake Adjustment Is Important Like all El Dorado parking brake caliper systems, proper adjustment is necessary for optimal performance. Parking Brake Adjustment Tips Pre-adjusting rear calipers is critical Verify proper return spring operation Ensure parking brake cables move freely Confirm anti-rotation piston mechanism alignment Adjust ratchet mechanism correctly Improper adjustment may cause: Parking brake won't hold Spongy pedal after disc swap Uneven brake engagement Recommended Brake System Upgrades For maximum braking performance, many builders also install: Adjustable proportioning valve Steel braided brake lines Master cylinder upgrade for 4 wheel disc Residual pressure valve removal These upgrades help improve pedal feel and brake balance on heavy trucks and off-road rigs. Banjo Bolt Compatibility This kit includes: 7/16-20 banjo bolts with copper sealing washers Some custom applications may also use: 10mm x 1.5 banjo bolt configurations Always verify hose and fitting compatibility during installation. Built for Off-Road and Heavy-Duty Use These off road brake calipers are designed for: Rock crawlers Trail rigs Overland trucks Mud trucks Tow rigs Heavy-duty GM trucks The heavy duty parking brake lever and durable caliper construction provide reliable operation even under severe conditions. Frequently Asked Questions (FAQs) What are Cadillac El Dorado brake calipers used for? They are commonly used in rear disc brake conversions because they combine hydraulic braking with an integrated mechanical parking brake. Are these calipers rebuilt? No. These are completely brand-new calipers with no rebuilt cores. What brake pads are included? The kit includes D122 brake pads with locking nub design. Will these work on a GM 14 Bolt rear disc conversion? Yes. These calipers are commonly used on GM 14 Bolt disc brake swap applications. Are parking brake levers included? Yes. The integrated parking brake mechanism and levers are included. What finish do the calipers use? These calipers feature a clear zinc plated finish for corrosion resistance. Are banjo bolts included? Yes. The kit includes 7/16-20 banjo bolts with copper sealing washers. Can these be used on Dana 60 rear disc conversions? Yes. These calipers are frequently used on Dana 60 rear disc conversion setups. Why does my parking brake not hold after installation? Improper caliper adjustment or cable setup is usually the cause. Pre-adjusting the calipers is important. Do I need an adjustable proportioning valve after a rear disc swap? In many applications, yes. An adjustable proportioning valve helps properly balance braking pressure.