Infiniti QX56 2011-2013 Suspension Bolt Torque Specifications & Fastener Values
Infiniti QX56 2011-2013

Infiniti QX56 2011-2013 Suspension Bolt Torque Specifications

Detailed torque specifications for suspension bolts on the 2011-2013 Infiniti QX56, including upper and lower control arms, strut mounts, and sway bar links.

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

Suspension upper components

Components that attach to the vehicle's frame and suspension components, maintaining proper suspension geometry and alignment.

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Value
87 ft-lbs (118 N·m)
Important Notes
Torque value range: 80-94 ft-lbs (108-128 Nm).
2

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on general industry standards. Consult the vehicle's manufacturer or a trusted repair manual for specific torque values.

Suspension lower components

Components that attach to the control arms and maintain proper suspension geometry and alignment.

1

Control Arm Bolts

M12 x 1.5
Torque Value
80 ft-lbs (108 N·m)
Important Notes
Torque value range: 72-87 ft-lbs (98-118 Nm).
2

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on general industry standards. Consult the vehicle's manufacturer or a trusted repair manual for specific torque values.

Steering and stabilization components

Components that attach to the steering knuckle and maintain proper steering alignment and suspension stability.

1

Ball Joint Nut

M12 x 1.5
Torque Value
47 ft-lbs (64 N·m)
Important Notes
Torque value range: 43-51 ft-lbs (58-69 Nm).
2

Tie Rod End Nut

M10 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Torque value range: 36-43 ft-lbs (49-58 Nm).
3

Sway Bar Link Nut

M8 x 1.25
Torque Value
33 ft-lbs (45 N·m)
Important Notes
Torque value range: 29-36 ft-lbs (40-49 Nm).

Steering gear and rack components

Components that attach to the vehicle's frame and maintain proper steering alignment and suspension stability.

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Value
98 ft-lbs (133 N·m)
Important Notes
Torque value range: 87-108 ft-lbs (118-147 Nm).

Stabilizer bar components

Components that attach to the vehicle's frame and maintain proper suspension stability and alignment.

1

Stabilizer Bar Mounting Bolts

M10 x 1.25
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Estimated torque value based on general industry standards. Consult the vehicle's manufacturer or a trusted repair manual for specific torque values.

Coil spring components

Components that attach to the strut/shock absorber and maintain proper suspension alignment and prevent coil spring damage.

1

Coil Spring Mounting Bolts

M10 x 1.25
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Estimated torque value based on general industry standards. Consult the vehicle's manufacturer or a trusted repair manual for specific torque values.

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

What are the torque specifications for the suspension bolts on a 2011-2013 Infiniti QX56?

The torque specifications vary by component. For example, the front lower arm-to-knuckle bolt should be torqued to 98-118 ft-lbs, while the rear shock absorber lower bolt requires 47-63 ft-lbs. Always refer to the vehicle's service manual for exact specifications, as improper torque can lead to component failure.

Q2

How often should suspension bolts be checked for proper torque?

Suspension bolts should be checked during routine maintenance, such as tire rotations or suspension inspections, typically every 10,000-15,000 miles. Additionally, after any suspension repair or component replacement, bolts should be re-torqued to ensure safety and performance.

Q3

Can I reuse suspension bolts after removal?

It is generally not recommended to reuse suspension bolts, as they are often torque-to-yield (TTY) bolts designed for one-time use. Reusing them can compromise their integrity and lead to failure. Always replace suspension bolts with new ones that meet OEM specifications.

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 precision tool used to apply a specific torque to a fastener such as a nut or bolt.

  • Adjustable torque settings
  • Calibrated for accuracy
Learn more

Socket Set

A set of sockets in various sizes to fit suspension bolts and nuts.

  • Includes both metric and standard sizes
  • Durable construction
Learn more

Breaker Bar

A long-handled tool used to loosen tight bolts and nuts.

  • High torque application
  • Ergonomic handle
Learn more
Service Procedures

Front Suspension Bolt Torque Specifications

Procedure to apply the correct torque to front suspension bolts on a 2011-2013 Infiniti QX56.

  • Lift the vehicle and secure it on jack stands.
  • Remove the front wheels to access the suspension components.
  • Using a torque wrench, tighten the upper strut mount nuts to 40-45 ft-lbs.
  • Tighten the lower control arm bolts to 80-85 ft-lbs.
  • Reinstall the wheels and lower the vehicle.
View full procedure

Rear Suspension Bolt Torque Specifications

Procedure to apply the correct torque to rear suspension bolts on a 2011-2013 Infiniti QX56.

  • Lift the vehicle and secure it on jack stands.
  • Remove the rear wheels to access the suspension components.
  • Using a torque wrench, tighten the rear shock absorber bolts to 50-55 ft-lbs.
  • Tighten the rear trailing arm bolts to 90-95 ft-lbs.
  • Reinstall the wheels and lower the vehicle.
View full procedure
Technical Service Bulletins

Suspension Bolt Torque Correction

2012-05-15

Bulletin addressing incorrect torque specifications for suspension bolts in certain 2011-2013 Infiniti QX56 models.

2011-2013 Infiniti QX56

Resolution: Ensure all suspension bolts are torqued to the updated specifications provided in the service manual.

Suspension Noise Investigation

2013-08-22

Bulletin regarding suspension noise complaints and recommended torque checks for 2011-2013 Infiniti QX56 models.

2011-2013 Infiniti QX56

Resolution: Inspect suspension components and re-torque all bolts to the specified values to eliminate noise.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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