Chrysler Voyager 2001-2003 Drivetrain Bolt Torque Specifications & Fastener Values
Chrysler Voyager 2001-2003

Chrysler Voyager 2001-2003 Drivetrain Bolt Torque Specifications

This page provides a comprehensive list of torque specifications for drivetrain bolts on 2001-2003 Chrysler Voyager vehicles. Includes information on transmission, differential, driveshaft, and axle 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

Engine Flywheel

This section covers torque specifications for components related to the flywheel or flexplate, responsible for transferring engine power to the transmission.

1

Flywheel Bolts

M10 x 1.25
Torque Value
75 ft-lbs (101 N·m)
Important Notes
Tighten in a star pattern. Ensure the flywheel mating surface is clean and free of debris.
2

Torque Converter Bolts (to Flywheel/Flexplate)

M10 x 1.5
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Tighten in a circular pattern. Estimated torque value based on typical application. Ensure the torque converter is properly seated.

Transmission Mounting

This section details the torque specifications for bolts that secure the transmission or transaxle assembly to the engine and vehicle frame/subframe.

1

Transmission Mounting Bolts (to Engine)

M12 x 1.75
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Ensure proper alignment before tightening. Check for any signs of binding.
2

Transaxle Mounting Bolts (to Engine/Frame)

M12 x 1.75
Torque Value
50 ft-lbs (68 N·m)
Important Notes
Estimated torque value based on size and application. Ensure proper alignment.

Transmission External

This section covers torque specifications for external components of the transmission, including the oil pan and drain/fill plugs.

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
9 in-lbs (12 N·m)
Important Notes
Tighten in a cross pattern. Ensure the gasket is properly seated to avoid leaks. Torque is provided in inch-lbs
2

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Use new sealing washers or O-rings. Over-tightening can damage the plug or transmission case.
3

Additional Transmission Fluid Drain/Fill Plugs

M18 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Use new sealing washers or O-rings. Over-tightening can damage the plug or transmission case.

Drive Axles

This section covers the torque specifications for components related to the drive axles/half shafts, including bolts and axle nuts.

1

Drive Axle/Half Shaft Bolts (inner CV joint)

M10 x 1.25
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even pressure. Use new bolts if specified by the manufacturer.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Value
180 ft-lbs (244 N·m)
Important Notes
Use a new nut if specified. High torque is necessary to ensure proper wheel bearing preload. This may also be a staked nut requiring additional steps.

Propeller Shaft

This section provides torque specifications for components related to the propeller/drive shaft, used in vehicles with rear-wheel drive or all-wheel drive systems.

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Value
100 ft-lbs (136 N·m)
Important Notes
Tighten the bolts in a cross pattern to ensure even pressure on the flange. Check alignment and ensure the driveshaft is properly centered.

Differential

This section provides torque specifications for bolts related to the vehicle's differential, including drain/fill plugs and carrier bolts.

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Use a new sealing washer or O-ring. Over-tightening can damage the plug or differential case.
2

Differential Carrier Bolts

M12 x 1.75
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Estimated torque value, tighten in a cross pattern. Proper alignment is critical. Ensure that the mating surfaces are clean.

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 is it important to use the correct torque specifications?

Using the correct torque specifications is crucial for the safety and reliability of your vehicle's drivetrain. Under-tightening can lead to components loosening, causing vibrations, damage, or even component failure. Over-tightening can stretch or break bolts, damage threads, and also lead to premature component failure. Always use a calibrated torque wrench to achieve the correct torque.

Q2

What happens if I don't have a torque wrench?

While it's strongly recommended to use a torque wrench, if you absolutely must proceed without one, you can try to tighten bolts to 'snug' using a regular wrench. Then, tighten them a bit more, but be very cautious not to overtighten. However, this is not a substitute for a torque wrench. It is best to obtain or borrow a proper torque wrench as soon as possible. A general rule is to try and make the bolts as tight as you can, without breaking them, if you have no access to tools, however this is extremely risky, do not do this if possible.

Q3

Do I need to use new bolts when reassembling drivetrain components?

It's highly recommended to use new bolts when reassembling critical drivetrain components, especially for parts like the flex plate, driveshaft, or differential. Many bolts are designed to stretch to achieve proper clamp load, and reusing them can lead to inadequate clamping force, loosening, and ultimately, failure. Additionally, old bolts may have weakened or damaged threads.

Q4

Should I use threadlocker on drivetrain bolts?

Threadlocker is a chemical compound used to prevent bolts from loosening due to vibrations and is often recommend by the OEM for many critical drivetrain bolts, especially for those connecting the differential, flexplate, and driveshaft. Consult your service manual to see if threadlocker is specified and use the correct type. Typically, a medium strength, like blue, is recommended for most drivetrain applications.

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 used to apply a specific amount of torque to fasteners.

  • Adjustable torque settings
  • Click mechanism for accurate torque application
Learn more

Socket Set (Metric)

A set of sockets of various sizes to fit different bolt heads.

  • Multiple sizes to accommodate various fasteners
  • Durable construction
Learn more

Extension Bars

Used to extend the reach of the torque wrench to fasteners in recessed areas.

  • Varying lengths for different access needs
  • Secure fit to socket and wrench
Learn more

Universal Joint

Allows socket and extension access to fasteners at an angle

  • Provides flexibility
  • Allows offset positioning
Learn more

Torque Angle Meter (Optional)

Used to measure the angle of rotation required after reaching the specified torque.

  • Measures degrees of rotation
  • Ensures accurate tightening of torque-to-yield bolts
Learn more
Service Procedures

Driveshaft Bolt Torque Procedure

Procedure for torquing the driveshaft bolts.

  • 1. Locate the driveshaft bolts.
  • 2. Clean the threads of the bolt and nut.
  • 3. Install the bolts, and hand tighten until snug.
  • 4. Using the appropriate socket and torque wrench, tighten the bolts to 75 ft-lbs (102 Nm).
  • 5. If specified, tighten a further 90 degrees with the torque angle meter or mark the bolt and rotate.
  • 6. Double check the torque setting
View full procedure

Transmission Mount Bolt Torque Procedure

Procedure for torquing the transmission mount bolts.

  • 1. Locate the transmission mount bolts.
  • 2. Clean the threads of the bolt and nut.
  • 3. Install the bolts, and hand tighten until snug.
  • 4. Using the appropriate socket and torque wrench, tighten the bolts to 55 ft-lbs (75 Nm).
  • 5. Double check the torque setting
View full procedure

Wheel Lug Nut Torque Procedure

Procedure for torquing the wheel lug nuts.

  • 1. Locate the wheel lug nuts.
  • 2. Hand tighten the lug nuts in a star pattern.
  • 3. Using the appropriate socket and torque wrench, tighten the lug nuts to 100 ft-lbs (135 Nm) in a star pattern.
  • 4. Double check the torque setting
View full procedure
Technical Service Bulletins

Driveshaft Vibration and Bolt Loosening

2002-05-15

Some 2001-2003 Voyager models may experience driveshaft vibration due to loose driveshaft bolts.

2001-2003 Chrysler Voyager

Resolution: Inspect driveshaft bolts for proper torque. Re-torque to specifications of 75 ft-lbs (102 Nm) followed by a further 90 degree turn.

Transmission Mount Failure and Noise

2003-01-20

Reports of loose or broken transmission mounts may cause drivetrain vibrations and noises.

2001-2003 Chrysler Voyager

Resolution: Inspect transmission mount for damage or looseness and retorque the mounting bolts to 55 ft-lbs (75 Nm). Replace mount if damaged.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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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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