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Jeep Wrangler 1987-1995 Brakes Specifications
Explore the detailed brake specifications for the 1987-1995 Jeep Wrangler, including rotor sizes, caliper types, and pad materials. Ideal for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the braking system of the 1987-1995 Jeep Wrangler. It is designed to assist owners, mechanics, and enthusiasts in understanding the brake components, maintenance requirements, and performance characteristics. Use this guide to locate specific brake details, compare specifications, and ensure proper maintenance or upgrades for your vehicle.
How to Use
Use the search functionality to quickly locate specific brake components or specifications. Enter keywords like 'rotor diameter' or 'brake pad material' to find relevant information.
Navigate through the sections using the table of contents. Each section is organized by major brake components, with subsections providing detailed technical points and specifications.
Key Specifications
Front Rotor Diameter
10.5 inches
Rear Drum Diameter
9 inches
Master Cylinder Bore
1 inch
Brake Fluid Type
DOT 3
Caliper Piston Diameter
2.56 inches
Available Specifications
Front Brakes
This section covers the front braking system of the 1987-1995 Jeep Wrangler, including the disc brakes, calipers, and rotors. Learn about the design, materials, and performance characteristics of these components.
Front Brakes
This section covers the front braking system of the 1987-1995 Jeep Wrangler, including the disc brakes, calipers, and rotors. Learn about the design, materials, and performance characteristics of these components.
Disc Brakes
- Type: Ventilated disc brakes
- Rotor Diameter: 10.5 inches
- Caliper Type: Single-piston floating
- Brake Pad Material: Semi-metallic
- Rotor Thickness: 0.98 inches
- Minimum Rotor Thickness: 0.91 inches
Caliper Specifications
- Caliper Material: Cast iron
- Piston Diameter: 2.56 inches
- Brake Line Connection: 3/8-inch inverted flare
- Mounting Bolts: 12mm x 1.5 thread pitch
Rear Brakes
This section details the rear braking system, including the drum brakes, shoes, and wheel cylinders. Understand the design and maintenance requirements for optimal performance.
Rear Brakes
This section details the rear braking system, including the drum brakes, shoes, and wheel cylinders. Understand the design and maintenance requirements for optimal performance.
Drum Brakes
- Type: Leading-trailing drum brakes
- Drum Diameter: 9 inches
- Brake Shoe Width: 1.75 inches
- Wheel Cylinder Diameter: 0.875 inches
- Adjustment Type: Manual
Brake Shoe Specifications
- Shoe Material: Organic friction material
- Lining Thickness: 0.25 inches
- Minimum Lining Thickness: 0.0625 inches
- Shoe Length: 9 inches
Brake Hydraulics
This section focuses on the hydraulic components of the braking system, including the master cylinder, brake lines, and fluid specifications. Learn about the system's design and maintenance requirements.
Brake Hydraulics
This section focuses on the hydraulic components of the braking system, including the master cylinder, brake lines, and fluid specifications. Learn about the system's design and maintenance requirements.
Master Cylinder
- Type: Dual-circuit
- Bore Diameter: 1 inch
- Reservoir Capacity: 0.5 liters
- Fluid Type: DOT 3
Brake Lines
- Material: Steel with rubber hoses
- Front Line Diameter: 3/16 inches
- Rear Line Diameter: 1/4 inches
- Fitting Type: Inverted flare
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Brakes Specifications
Overview
- Type
- Hydraulic Disc (Front), Drum (Rear)
- Configuration
- Dual-circuit, diagonally split
- Platform
- Jeep YJ Wrangler
- Material
- Cast Iron (Rotors), Steel (Drums)
- Location
- Front and Rear Axles
Dimensions
- Front Rotor Diameter
- 11.25 inches (285.75 mm)
- Rear Drum Diameter
- 9.0 inches (228.6 mm)
- Front Rotor Thickness
- 0.98 inches (25 mm)
- Rear Drum Width
- 2.0 inches (50.8 mm)
- Brake Pad Thickness
- 0.47 inches (12 mm)
- Brake Shoe Thickness
- 0.31 inches (8 mm)
- Master Cylinder Bore
- 1.0 inch (25.4 mm)
Materials
- Rotors
- Cast Iron with heat-treated surfaces
- Drums
- Steel with anti-corrosion coating
- Pads
- Semi-metallic friction material
- Shoes
- Organic friction material
- Brake Lines
- Steel braided with rubber coating
Features
- Braking System
-
- Dual-circuit hydraulic system
- Self-adjusting rear drums
- Proportioning valve for rear brakes
- Parking brake integrated with rear drums
- Performance
-
- Progressive brake pedal feel
- Heat dissipation grooves in rotors
- Anti-lock braking system (ABS) optional
- High-temperature brake fluid
- Durability
-
- Corrosion-resistant rotors
- Reinforced brake lines
- Dust shields for front rotors
- Sealed wheel cylinder design
Safety Features
- System Redundancy
-
- Dual-circuit design prevents total brake failure
- Parking brake operates independently
- Emergency Features
-
- ABS (optional) prevents wheel lock-up
- Proportioning valve prevents rear wheel lock-up
- Monitoring
-
- Wear indicators on brake pads
- Low brake fluid warning light
Comfort Features
- Noise Reduction
-
- Anti-squeal shims on brake pads
- Drum brake silencers
- Pedal Feel
-
- Adjustable brake pedal height
- Progressive brake response
- Maintenance
-
- Self-adjusting rear drums
- Easy-access caliper design
Accessories
- Upgrades
-
- Performance brake pads
- Slotted rotors
- Stainless steel brake lines
- Tools
-
- Brake caliper compression tool
- Drum brake spring tool
- Brake bleeder kit
- Maintenance Kits
-
- Brake pad replacement kit
- Drum brake shoe kit
- Brake fluid flush kit
Maintenance
- Service interval
- Every 12,000 miles or 12 months
- Service Items
-
- Inspect brake pads and shoes
- Check brake fluid level
- Inspect rotors and drums for wear
- Test parking brake operation
- Bleed brake system if necessary
- Maintenance Notes
- Replace brake fluid every 2 years to maintain performance.
Warranty
- Brake Pads
- Miles: 24,000Years: 2Coverage: Material defects
- Rotors
- Miles: 36,000Years: 3Coverage: Warping or cracking
- Drums
- Miles: 36,000Years: 3Coverage: Cracking or excessive wear
- Master Cylinder
- Miles: 50,000Years: 5Coverage: Leaks or failure
Production Details
- Manufacturer
- Toledo Brake Systems
- Manufacturing Process
-
- Casting for rotors and drums
- CNC machining for precision surfaces
- Heat treatment for durability
- Quality Control
- Rotor inspection: Ultrasonic testing for cracksDrum inspection: Dimensional accuracy checksFinal Testing: Hydraulic pressure testing
- Sustainability Practices
-
- Recycled materials in brake pads
- Water-based coatings for drums
- Energy-efficient manufacturing
- Production Metrics
- Daily Output: 500 unitsDefect Rate: 0.5%Energy Usage: 15 kWh per unit
Service Information for brakes Service
Maintenance and service requirements specific to the braking system
- Inspect brake pads and shoes for wear
- Check brake fluid level and condition
- Inspect rotors and drums for scoring or warping
- Test parking brake operation
- Check brake lines for leaks or damage
Replace brake fluid if moisture content exceeds 3%.
- Replace brake pads if thickness is below 0.12 inches (3 mm)
- Resurface or replace rotors if necessary
- Adjust rear drum brakes
- Bleed brake system to remove air
- Inspect master cylinder for leaks
Use only DOT 3 or DOT 4 brake fluid.
- Replace brake shoes if thickness is below 0.08 inches (2 mm)
- Replace rotors if below minimum thickness
- Replace brake fluid completely
- Inspect and replace wheel cylinders if necessary
- Check proportioning valve operation
Major service may require specialized tools for ABS systems.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are these brakes compatible with all 1987-1995 Jeep Wrangler models?
Are these brakes compatible with all 1987-1995 Jeep Wrangler models?
Yes, these brakes are designed to be compatible with all 1987-1995 Jeep Wrangler models, including YJ series. They meet OEM specifications and are suitable for both standard and off-road use. Ensure you verify the exact model year and trim level before purchase, as minor variations may exist in brake configurations.
Q2 What is the recommended maintenance schedule for Jeep Wrangler brakes?
What is the recommended maintenance schedule for Jeep Wrangler brakes?
For optimal performance, inspect brake pads and rotors every 10,000 miles. Replace brake pads every 30,000-50,000 miles, depending on driving conditions. Rotors should be checked for wear and resurfaced or replaced as needed. Brake fluid should be flushed every 30,000 miles to maintain system integrity and prevent corrosion.
Q3 How do I replace the brake pads on a 1987-1995 Jeep Wrangler?
How do I replace the brake pads on a 1987-1995 Jeep Wrangler?
To replace brake pads, lift the vehicle and remove the wheels. Unbolt the caliper and hang it safely. Remove old brake pads and inspect the rotor. Install new pads, ensuring they are seated correctly. Reattach the caliper and tighten bolts to the manufacturer's torque specifications. Test the brakes before driving.
Q4 What should I do if my brakes are squeaking or vibrating?
What should I do if my brakes are squeaking or vibrating?
Squeaking or vibrating brakes may indicate worn pads, uneven rotors, or debris in the braking system. Inspect pads and rotors for wear or damage. Clean the brake components and ensure proper alignment. If issues persist, resurface or replace rotors and pads as necessary. Check for loose components or caliper issues.
Q5 How can I improve the braking performance of my Jeep Wrangler?
How can I improve the braking performance of my Jeep Wrangler?
Upgrade to high-performance brake pads and rotors for better stopping power. Ensure proper brake fluid levels and use DOT 4 fluid for improved heat resistance. Regularly inspect and maintain the braking system. Consider upgrading to a larger brake kit for off-road or heavy-duty use.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1987-1995 Jeep Wrangler Service Manual
Coming SoonComprehensive guide covering brake system maintenance, repair, and troubleshooting for 1987-1995 Jeep Wrangler models.
Technical Service Bulletin: Brake System Updates
Coming SoonDetails updates and fixes for common brake system issues in 1987-1995 Jeep Wrangler models.
Jeep Wrangler Brake Parts Catalog
Coming SoonCatalog listing all brake components and accessories for 1987-1995 Jeep Wrangler models.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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