Chrysler Voyager 2020-present Drivetrain Bolt Torque Specifications & Fastener Values
Chrysler Voyager 2020-present

Chrysler Voyager 2020-present Drivetrain Bolt Torque Specifications

Comprehensive guide to drivetrain bolt torque specifications for the 2020-Present Chrysler Voyager. Includes torque values for various drivetrain 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 To Transmission

This subsystem includes components connecting the engine to the transmission, essential for power transfer.

1

Flywheel Bolts

M12 x 1.25
Torque Value
55 ft-lbs (75 N·m)
Important Notes
Apply threadlocker to the bolt threads before installation. Ensure flywheel is properly aligned to the crankshaft before tightening. Tighten in a star pattern.
2

Torque Converter Bolts to Flywheel/Flex Plate

M10 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Replace bolts with new ones; these are often torque-to-yield. Ensure proper alignment of the torque converter to the flex plate before tightening. Tighten in a star pattern.
3

Transmission to Engine/Adapter Plate Bolts

M12 x 1.75
Torque Value
55 ft-lbs (75 N·m)
Important Notes
Ensure transmission is properly aligned before tightening. Tighten bolts evenly to avoid stress on the transmission or engine casings. Some models may have different bolt lengths, ensure you use the correct ones. Apply threadlocker.

Transmission Subsystem

This subsystem includes components directly related to the transmission unit.

1

Transmission Mounting Bolts

M12 x 1.75
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Ensure proper alignment with the engine block or chassis. Use new bolts if the originals are damaged. Apply threadlocker.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
13 ft-lbs (17 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to evenly compress the gasket. Be careful not to overtighten as it can damage the transmission pan and gasket and cause leaks.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Use new sealing washers. Do not over-tighten, as this can damage the plug or the transmission case. Use appropriate sealing compound if necessary.

Driveshaft And Axles

This subsystem includes components that transfer power to the wheels.

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Value
70 ft-lbs (95 N·m)
Important Notes
These bolts connect the axle to the transmission flange or differential. Clean threads thoroughly before installation. Ensure the axle is properly seated and use threadlocker.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Value
185 ft-lbs (251 N·m)
Important Notes
This nut secures the CV joint to the wheel hub and is critical for proper wheel bearing preload. Always use a new nut. Torque to specifications.
3

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Value
90 ft-lbs (122 N·m)
Important Notes
Used in AWD applications; connects the driveshaft to the transmission/transfer case, and the differential. Ensure driveshaft is centered and aligned before tightening. Apply threadlocker. Tighten in a star pattern.
4

Driveshaft Center Support Bearing Bolts

M8 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Used in AWD applications. Ensures proper driveshaft alignment and support. Do not overtighten. Apply threadlocker.

Differential Transfercase

This subsystem includes components related to the differential and transfer case.

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Use new sealing washers. Do not over-tighten, as this can damage the plug or differential case.
2

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Use new sealing washers. Do not over-tighten, as this can damage the plug or the transfer case. Verify proper thread engagement to avoid cross threading.
3

Differential Cover Bolts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Avoid over-tightening to prevent leaks and deformation of the cover or housing.
4

Front and Rear Differential Mounting Bolts

M12 x 1.75
Torque Value
50 ft-lbs (68 N·m)
Important Notes
Ensure proper alignment of the differential to the vehicle's subframe/chassis before tightening. These bolts are crucial for maintaining alignment and preventing vibrations. Apply threadlocker. Tighten in a star pattern.

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 proper torque specifications important for drivetrain bolts?

Proper torque is crucial for ensuring a secure and reliable connection between drivetrain components. Under-tightening can lead to bolts loosening, causing noise, vibration, or even component failure. Over-tightening can stretch or break bolts, damaging threads and potentially leading to catastrophic failure. Correct torque creates the necessary clamping force to prevent movement and maintain component alignment.

Q2

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

Using a torque wrench is essential for accurate tightening. Without it, it is very difficult to judge the appropriate tightness, and you risk under or over tightening bolts. Guessing or 'going by feel' can easily lead to loose components, damage to parts or even personal injury. A torque wrench applies a known, measurable amount of force during tightening.

Q3

Can I reuse drivetrain bolts?

Generally, it's recommended to replace torque-to-yield (TTY) bolts, such as those often used in drivetrain applications, as they are designed to stretch upon installation. Reusing these bolts can lead to unpredictable clamping force and increased risk of failure. If you're unsure, always consult the manufacturer's service manual.

Q4

What if I strip or damage a bolt during installation?

If you strip a bolt thread or otherwise damage a bolt during installation, you must replace the damaged component immediately, ensuring that the bolt threads are restored to the OEM specification. Do not attempt to force a damaged bolt. Using damaged bolts can risk improper clamping, failure of the bolt and damage to the component.

Q5

How often should I check drivetrain bolt torque?

While not typically part of regular maintenance, it's good practice to check drivetrain bolt torque if you notice unusual noises or vibrations, after performing repairs or if you frequently tow heavy loads. It is good to follow factory service manuals for recommended inspection intervals. Also, any time a bolt is removed, it should be torqued back into place at the proper specification.

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 (1/2" Drive)

A calibrated torque wrench capable of measuring torque values within the specified range for drivetrain components.

  • Accurate torque readings
  • Click-type mechanism for precise torque application
Learn more

Torque Wrench (3/8" Drive)

A smaller torque wrench for accessing tighter areas and lower torque values.

  • Suitable for smaller bolts and fasteners
  • Precise torque control
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets in various sizes to fit drivetrain bolts and nuts.

  • Multiple sizes for various fasteners
  • Durable construction
Learn more

Socket Extensions

Extensions of varying lengths for torque application in hard-to-reach areas.

  • Increase reach for bolts and nuts
  • Durable construction
Learn more

Universal Joint

Allows for offset torque application

  • Allows working at an angle
  • Durable construction
Learn more
Service Procedures

Driveshaft Bolt Torque Procedure

Procedure for tightening driveshaft bolts to the correct torque specification.

  • Locate the driveshaft bolts connecting the driveshaft to the transmission and differential.
  • Clean the threads of the bolts and the receiving holes to remove any debris.
  • Using the appropriate socket and torque wrench, tighten the bolts to the initial torque specification, usually a lower value.
  • Tighten the bolts in a star or cross pattern to the final specified torque specification.
  • Verify torque by using torque wrench a second time
View full procedure

Transmission Mount Bolt Torque Procedure

Procedure for tightening transmission mount bolts to the correct torque specification.

  • Locate the transmission mount bolts connecting the transmission to the chassis.
  • Clean the threads of the bolts and the receiving holes to remove any debris.
  • Using the appropriate socket and torque wrench, tighten the bolts to the initial torque specification, usually a lower value.
  • Tighten the bolts in a star or cross pattern to the final specified torque specification.
  • Verify torque by using torque wrench a second time
View full procedure

Differential Mount Bolt Torque Procedure

Procedure for tightening differential mount bolts to the correct torque specification.

  • Locate the differential mount bolts connecting the differential to the chassis.
  • Clean the threads of the bolts and the receiving holes to remove any debris.
  • Using the appropriate socket and torque wrench, tighten the bolts to the initial torque specification, usually a lower value.
  • Tighten the bolts in a star or cross pattern to the final specified torque specification.
  • Verify torque by using torque wrench a second time
View full procedure
Technical Service Bulletins

Excessive Vibration Due to Improper Driveshaft Bolt Torque

2021-05-15

Some 2020-2021 Voyager models may experience excessive driveline vibration. This may be attributed to improper torque of the driveshaft bolts. Incorrect torque of the driveshaft bolts can lead to driveline imbalance.

2020-2021

Resolution: Inspect driveshaft bolts and tighten to the specified torque using the proper star pattern.

Transmission Mount Bolt Loosening Issue

2022-01-10

Reports of transmission mount bolts loosening on 2021-2022 Voyager models have been received. This can cause clunking noises and potential damage to the driveline. This may be due to improper bolt seating or initial torque application.

2021-2022

Resolution: Inspect transmission mount bolts. Ensure proper seating and apply the specified torque using a cross pattern and verify the torque by using torque wrench a second time.

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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