Chrysler Concorde 1998-2004 Suspension Bolt Torque Specifications & Fastener Values
Chrysler Concorde 1998-2004

Chrysler Concorde 1998-2004 Suspension Bolt Torque Specifications

This page provides a comprehensive list of torque specifications for all suspension bolts on the 1998-2004 Chrysler Concorde. Includes front and rear suspension components.

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

Strut Shock Mounting

Specifications for bolts securing the strut or shock absorber assembly to the vehicle frame, chassis, or steering knuckle.

1

Strut/Shock Absorber Lower Mounting Bolt

M14 x 1.5
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Secures the lower end of the strut/shock to the steering knuckle or lower control arm. Ensure proper alignment before tightening.
2

Strut/Shock Absorber Upper Mounting Bolts/Nuts

M10 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the top of the strut assembly to the vehicle frame or chassis. Torque evenly in a cross pattern.

Control Arms

Specifications for bolts and nuts attaching the control arms (upper, lower, lateral) to the frame, subframe, or knuckle.

1

Front Lower Control Arm to Frame Bolt

M14 x 1.5
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Attaches the front lower control arm to the frame or subframe. Ensure suspension is at ride height before final torque.
2

Rear Lateral Control Arm to Frame/Knuckle Bolt

M12 x 1.5
Torque Value
70 ft-lbs (95 N·m)
Important Notes
Attaches the rear lateral control arms to the vehicle's frame and the rear knuckle/spindle. Some designs act as an adjustment point.
3

Front Lower Control Arm Bushing Bolt

M14 x 1.5
Torque Value
65 ft-lbs (88 N·m)
Important Notes
Attaches the front control arm bushing to the frame or subframe. This may also be a caster adjustment point.
4

Rear Lower Control Arm Bushing Bolt

M12 x 1.5
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Attaches the rear control arm bushing to the frame. This is a suspension pivot point. Ensure the suspension is at ride height before final torque.

Ball Joints

Specifications for nuts and bolts securing the ball joint stud and housing.

1

Ball Joint Nut

M12 x 1.25
Torque Value
55 ft-lbs (75 N·m)
Important Notes
Secures the ball joint stud to the steering knuckle or control arm. Use a new nut if removed.
2

Lower Control Arm Ball Joint Attachment Bolts

M10 x 1.5
Torque Value
55 ft-lbs (75 N·m)
Important Notes
Attaches the ball joint housing to the control arm. Torque in a cross pattern for even pressure.

Steering Components

Specifications for nuts and bolts securing steering components such as tie rod ends.

1

Tie Rod End Nut

M12 x 1.25
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Secures the tie rod end to the steering knuckle. Do not overtighten. Ensure proper alignment after installation.

Sway Bar System

Specifications for bolts and nuts securing the sway bar, links, and mounting brackets.

1

Sway Bar Link Nut

M10 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Connects the sway bar to the strut or control arm. Do not over-tighten, can damage sway bar links.
2

Sway Bar Mounting Bracket Bolts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the sway bar mounting brackets to the frame or subframe. Do not overtighten, could damage bushings.

Steering Knuckle

Specifications for bolts securing the steering knuckle/spindle to the strut assembly and other components.

1

Steering Knuckle/Spindle to Strut Bolt

M12 x 1.5
Torque Value
70 ft-lbs (95 N·m)
Important Notes
Attaches the steering knuckle to the strut assembly. Check for proper alignment during install.
2

Wheel Hub/Bearing Mounting Bolts

M12 x 1.5
Torque Value
75 ft-lbs (102 N·m)
Important Notes
Secures the wheel hub/bearing assembly to the steering knuckle. Ensure proper seating of the hub. Tighten in a cross pattern.

Trailing Arm

Specifications for bolts securing the trailing arm to the frame and axle assembly.

1

Trailing Arm Mounting Bolts

M14 x 1.5
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Secures the trailing arm to the vehicle's frame and rear axle assembly. Ensure the suspension is at ride height before final tightening. This torque value is an estimate based on common bolt size and application.

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 torque specifications important for suspension bolts?

Correct torque is crucial for suspension component integrity. Under-torqued bolts can loosen, leading to instability, noise, and component failure. Over-torqued bolts can stretch, weaken, or even break, potentially causing catastrophic suspension failure. Proper torque ensures the bolts clamp the components together correctly, maintaining optimal suspension performance and safety.

Q2

Can I use a regular wrench instead of a torque wrench?

While you can technically use a regular wrench, it's strongly discouraged for suspension components. A torque wrench provides a precise measurement of applied force, ensuring bolts are tightened to the manufacturer's recommended specification. Using a regular wrench relies on guesswork, increasing the risk of under or over-torquing. Investing in a torque wrench is essential for safe and proper suspension work.

Q3

What happens if I reuse old suspension bolts?

Reusing old suspension bolts is generally not recommended, especially for critical components. Bolts can stretch and weaken after being tightened and loosened repeatedly. Old bolts may also have corrosion or thread damage that isn't visible. Using new bolts will ensure the clamp load is accurate and the threads are new, preventing issues. If you must reuse a bolt, inspect it carefully for any damage. Follow manufacturer recommendations on replacement and torque-to-yield bolts.

Q4

How often should I check my suspension bolt torque?

It's recommended to check your suspension bolt torque after any suspension work is performed and then again after approximately 50-100 miles of driving. Following this initial check, perform a visual check during routine maintenance intervals. If you notice any unusual noises, clunking, or changes in handling, it's crucial to check torque specifications.

Q5

Are there different torque specs for different locations on the suspension?

Yes, absolutely. Each bolt on the suspension system, including control arms, struts, sway bar links, and steering components, has its own specified torque value. These values differ based on the bolt size, material, and its specific role in the suspension system. Refer to a repair manual or the manufacturer's specifications for the correct torque for each bolt.

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

A calibrated tool for accurately tightening fasteners to specified torque values.

  • Adjustable torque range
  • Click or digital readout for accuracy
Learn more

Socket Set (Metric)

A collection of sockets to fit various bolt and nut sizes on the vehicle.

  • Common metric sizes
  • Durable construction
Learn more

Wrench Set (Metric)

A set of wrenches to hold or loosen fasteners that are in locations inaccessible to sockets.

  • Common metric sizes
  • Open-end and box-end options
Learn more

Jack Stands

Essential for safely supporting the vehicle when it is raised to perform suspension work.

  • Sturdy base
  • Adjustable height
Learn more

Vehicle Jack

For lifting the vehicle to perform suspension work

  • Correct lifting capacity
  • Stable operation
Learn more
Service Procedures

Front Suspension Bolt Torque Specifications

This procedure outlines the recommended torque specifications for fasteners in the front suspension of the 1998-2004 Chrysler Concorde.

  • Consult the vehicle's service manual for specific torque values for each bolt and nut.
  • Identify the fastener to be torqued.
  • Apply the correct torque value using a calibrated torque wrench.
  • Double-check that all fasteners are tightened to specification.
View full procedure

Rear Suspension Bolt Torque Specifications

This procedure outlines the recommended torque specifications for fasteners in the rear suspension of the 1998-2004 Chrysler Concorde.

  • Consult the vehicle's service manual for specific torque values for each bolt and nut.
  • Identify the fastener to be torqued.
  • Apply the correct torque value using a calibrated torque wrench.
  • Double-check that all fasteners are tightened to specification.
View full procedure
Technical Service Bulletins

Suspension Bolt Re-Torque Recommendation

2001-05-15

This bulletin recommends re-torquing suspension bolts after initial repair to ensure proper fastening and safety.

1998-2004

Resolution: Re-torque all suspension bolts after 50-100 miles of driving following any repair to the suspension components. Refer to service manual for correct torque specs.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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