Chrysler Concorde 1998-2004 Brake System Bolt Torque Specifications & Fastener Values
Chrysler Concorde 1998-2004

Chrysler Concorde 1998-2004 Brake System Bolt Torque Specifications

Detailed torque specifications for brake components on 1998-2004 Chrysler Concorde models, including caliper bolts, bracket bolts, and other related hardware.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Brake Calipers

Torque specifications for components directly related to the brake calipers, including mounting and hose connections.

1

Caliper Mounting Bolts

M10 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the brake caliper to the mounting bracket. Ensure proper torque for even brake pad pressure and prevent brake failure.
2

Brake Hose Banjo Bolt

M10 x 1.0
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the brake hose to the caliper. Use new crush washers. Proper torque is critical for containing brake fluid under pressure.
3

Brake Bleeder Screw

M7 x 1.0
Torque Value
10 ft-lbs (13.5 N·m)
Important Notes
Used to release air from brake lines. Do not overtighten to avoid damage to the screw or caliper.

Brake Mounting Brackets

Specifications for mounting brackets that secure the brake calipers to the vehicle's suspension components.

1

Caliper Mounting Bracket Bolts

M12 x 1.75
Torque Value
80 ft-lbs (108 N·m)
Important Notes
Secures the caliper mounting bracket to the steering knuckle (front) or rear axle assembly (rear). Crucial for holding the brake assembly securely.

Brake Rotors And Drums

Torque specifications for fasteners directly related to the brake rotors or drums.

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Value
75 ft-lbs (102 N·m)
Important Notes
Holds the brake rotor (disc) to the hub, ensuring correct alignment and preventing wobble. Works in conjunction with wheel nuts. Not the same as wheel lug nuts.

Wheel Fasteners

Torque specifications for wheel lug nuts.

1

Wheel Lug Nuts

M12 x 1.5
Torque Value
100 ft-lbs (136 N·m)
Important Notes
Secures the wheel to the hub, which is directly coupled to the brake rotor/drum. Use a star pattern when tightening. Correct torque is critical to prevent wheel detachment.

Abs System

Torque specifications for components related to the Anti-lock Braking System (ABS) control module.

1

ABS Control Module Mounting Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Secures the ABS control module to the chassis. Critical for correct ABS performance. The bolts are typically small diameter, so a low torque value is required.

Master Cylinder

Torque specifications for the master cylinder and associated components.

1

Master Cylinder Mounting Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Secures the master cylinder to the brake booster. Proper torque is important to prevent leaks and ensure proper braking system function.

Brake Booster

Torque specifications for components related to the brake booster assembly.

1

Brake Booster Mounting Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Secures the brake booster to the firewall. Multiple bolt sizes may be present. Tighten in a star pattern to ensure even pressure.

Brake Pedal

Torque specifications for the brake pedal assembly.

1

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24.5 N·m)
Important Notes
Ensures the pedal assembly is safe and properly installed. Over or under torquing can cause unexpected behavior or brake failure.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Why are correct torque specifications important for brake components?

Correct torque is crucial for safe and effective braking. Over-tightening can damage threads, warp rotors, or cause component failure. Under-tightening can lead to loose parts, vibrations, and brake failure. For example, improperly torqued caliper bolts can lead to brake pads becoming misaligned and cause reduced braking power and damage to rotors. Always use a calibrated torque wrench.

Q2

What happens if I over-torque brake caliper bracket bolts?

Over-torquing caliper bracket bolts can stretch or break the bolt, or crack the caliper bracket itself. This is extremely dangerous as it can compromise the structural integrity of the brake system and may cause total failure if it happens while driving. Furthermore, it can make removal very difficult, requiring the use of specialty tools or replacement of the caliper and bracket. It can also cause a misalignment of the caliper, causing it to bind on the rotor.

Q3

Should I use threadlocker on brake components?

It is generally recommended to use threadlocker, especially a medium strength (such as blue Loctite), on brake components like caliper bolts and guide pins. This helps to prevent loosening due to vibrations during driving and temperature changes. For example, if your caliper bolts are prone to backing out, using threadlocker will provide an added layer of security. However, do not use permanent (red) threadlocker. Always refer to the service manual for your specific vehicle model.

Q4

Do I need to replace brake bolts every time?

While it is often recommended to replace critical fasteners, like torque-to-yield head bolts, it's not strictly required for brake bolts every time if they appear undamaged and are properly torqued. However, replacing them can provide peace of mind and avoid issues with fatigued fasteners. For example, bolts that have experienced multiple torque cycles can become weakened or stretched.

Q5

What torque wrench should I use for brake work?

Always use a calibrated torque wrench suitable for the required torque range. For most brake components on the Chrysler Concorde, a 3/8" drive torque wrench will be sufficient for guide pins, while a 1/2" drive wrench is better suited for caliper bracket bolts. It is crucial to select the right range of torque wrench, ensuring you are within the middle 20-80% of its range, as accuracy is reduced at the extremes. Check the accuracy of your torque wrench regularly as well.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Torque Wrench (3/8" Drive)

A calibrated torque wrench is essential for accurately tightening bolts to specified torques, preventing over-tightening or under-tightening which could compromise safety.

  • Measures in ft-lbs or Nm
  • Click-type or digital readout
Learn more

Socket Set (Metric)

A comprehensive metric socket set is necessary to fit the various bolt and nut sizes on the brake components.

  • Variety of sizes (e.g., 10mm, 13mm, 15mm, 17mm)
  • Deep and shallow sockets
Learn more

Brake Cleaner

Brake cleaner helps to remove dirt, grease, and contaminants from brake components before assembly.

  • Quick-drying formula
  • Leaves no residue
Learn more
Service Procedures

Front Caliper Bracket Bolt Torque

Torque specification for the bolts attaching the front caliper bracket to the steering knuckle.

  • Locate the caliper bracket bolts.
  • Using the correct socket, tighten the bolts to 90 ft-lbs (122 Nm).
View full procedure

Front Caliper Guide Pin Bolt Torque

Torque specification for the bolts or pins holding the front caliper to the bracket.

  • Locate the caliper guide pin bolts.
  • Using the correct socket, tighten the bolts to 24 ft-lbs (33 Nm).
View full procedure

Rear Caliper Bracket Bolt Torque

Torque specification for the bolts attaching the rear caliper bracket to the rear knuckle/axle.

  • Locate the rear caliper bracket bolts.
  • Using the correct socket, tighten the bolts to 55 ft-lbs (75 Nm).
View full procedure

Rear Caliper Guide Pin Bolt Torque

Torque specification for the bolts or pins holding the rear caliper to the bracket.

  • Locate the caliper guide pin bolts.
  • Using the correct socket, tighten the bolts to 24 ft-lbs (33 Nm).
View full procedure
Technical Service Bulletins

Possible premature brake wear

2001-05-15

A possible issue with front brake pads wearing quicker than normal and possible brake squeal.

1998-2001

Resolution: Verify that proper torque is being applied to all brake components and check for proper caliper movement.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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