Chrysler 300 2011-present W5A580 Transmission Transmission Torque Specifications & Bolt Torque Values
Chrysler 300 2011-present

Chrysler 300 2011-present W5A580 Transmission Torque Specifications

Detailed torque specifications for all bolts on the W5A580 transmission used in the 2011-Present Chrysler 300. Includes bellhousing, pan, valve body, and other relevant bolt torque values.

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

Transmission Mounting

Specifications for bolts securing the transmission to the vehicle chassis or subframe.

1

Transmission Mounting Bolts

M12 x 1.75
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment before tightening. Final tightening should be performed with the vehicle at its normal ride height.

Transmission Case

Specifications for bolts related to the main transmission case and bellhousing.

1

Transmission Bellhousing Bolts (Engine Side)

M12 x 1.75
Torque Value
45 ft-lbs (61 N·m)
Important Notes
These bolts connect the transmission to the engine block. It is critical to use the proper torque for a secure fit.
2

Transmission Bellhousing Bolts (Transmission Case Side)

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
These bolts secure the bellhousing to the main transmission case. Ensure surfaces are clean and free from debris.

Oil Pan

Specifications for the bolts securing the transmission oil pan.

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Tighten these bolts in a criss-cross pattern. Over-tightening may damage the pan or cause leaks. Value is converted from 105 inch-lbs.

Fluid Plugs

Specifications for the transmission fluid drain and fill plugs.

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Use new sealing washers with every plug removal. Ensure sealing surfaces are clean.

Cooler Lines

Specifications for the fittings connecting the transmission cooler lines to the transmission case.

1

Transmission Cooler Line Fittings

M16 x 1.5
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Ensure O-rings or seals are in good condition. Do not over-tighten as damage to the threads or sealing surface will occur.

Output Shaft

Specifications for the output shaft flange bolt to the driveshaft/propeller shaft.

1

Transmission Output Shaft Flange Bolt

M12 x 1.5
Torque Value
55 ft-lbs (75 N·m)
Important Notes
This bolt connects the driveshaft/propeller shaft to the transmission output flange. Use new hardware if the old one is damaged.

Valve Body

Specifications for the bolts securing the valve body within the transmission case.

1

Transmission Valve Body Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Tighten these bolts in a criss-cross pattern. Over-tightening will damage the valve body. Value is converted from 105 inch-lbs.

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 happens if I over-torque the transmission bolts?

Over-torquing W5A580 transmission bolts can lead to several issues. It can stretch or weaken the bolt itself, potentially causing it to break or fail under stress. It can also damage the threads in the transmission case, making it difficult or impossible to properly torque a replacement bolt. Additionally, excessive force can crush or distort the transmission pan gasket, leading to leaks. For example, if you over-tighten the pan bolts, you might see transmission fluid dripping shortly after the repair.

Q2

What happens if I under-torque the transmission bolts?

Under-torquing W5A580 transmission bolts means the components are not securely fastened. This can lead to leaks from the transmission pan or other areas due to insufficient clamping force on the gasket. Loose bolts can also cause vibrations and unusual noises, and could even back out entirely over time, resulting in significant component damage or failure. For instance, if you under-tighten the bell housing bolts, the transmission might misalign with the engine and result in driveline vibrations.

Q3

Do I need to use new bolts when working on the W5A580 transmission?

While not always mandatory, it's highly recommended to replace critical bolts, especially those related to the pan or bell housing, whenever they are removed. Bolts can stretch and weaken with use, and they are designed to maintain a certain clamp force. Using new bolts will help ensure proper sealing and prevent issues. For instance, using a new transmission pan bolt will ensure optimal clamping force and sealing properties.

Q4

Do I need to use thread locker on the W5A580 transmission bolts?

Generally, thread locker is not required for most W5A580 transmission bolts, especially those related to the pan or valve body. However, it's wise to consult your specific vehicle's service manual. Some bolts, especially those in areas prone to vibration, such as the bell housing bolts, might require a specific type of threadlocker (e.g., low strength blue Loctite). Always refer to factory service literature before using any thread locker. Using the wrong thread locker can cause major issues and potential damage.

Q5

How do I properly tighten the transmission pan bolts on the W5A580?

When tightening the W5A580 transmission pan bolts, follow a cross-tightening pattern, much like you would when tightening lug nuts on a wheel. This ensures even clamping pressure on the gasket. Tighten the bolts in multiple passes, gradually increasing the torque to the specified value. For instance, if the torque spec is 10 Nm, tighten each bolt to 5 Nm initially, then 8 Nm, and finally to the full 10 Nm in a criss-cross pattern.

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 torque wrench is essential for tightening bolts to the correct specification to prevent damage and ensure proper assembly.

  • Accurate torque settings
  • Variety of torque ranges
Learn more

Socket Set

A comprehensive socket set with both metric and standard sizes is needed to access and tighten the transmission bolts.

  • Various sizes
  • Deep sockets
Learn more

Extension Bars

Extension bars in varying lengths will be necessary to reach bolts in recessed or hard-to-reach areas.

  • Multiple lengths
  • Sturdy construction
Learn more
Service Procedures

W5A580 Transmission Bolt Torque Specifications

This procedure provides the correct torque specifications for various bolts on the W5A580 transmission used in 2011-Present Chrysler 300 models. Proper torque is critical for proper function and reliability.

  • Identify the specific bolt location.
  • Consult the vehicle's service manual for the exact torque specification for that bolt.
  • Using a calibrated torque wrench, tighten the bolt to the specified torque value.
View full procedure

Transmission Pan Bolt Torque Specification

This procedure outlines the specific torque values for the transmission pan bolts on the W5A580 transmission.

  • Clean the threads of the pan bolts.
  • Install the pan with a new gasket.
  • Torque the bolts in a crisscross pattern to the specified value.
View full procedure

Transmission Valve Body Bolt Torque Specifications

This outlines the torquing procedure for the W5A580 transmission's valve body bolts.

  • Clean the threads of the valve body bolts.
  • Tighten the valve body bolts to specified torque.
  • Double check all bolts for proper torque.
View full procedure
Technical Service Bulletins

Potential Issues with Incorrect Transmission Bolt Torque

2015-07-15

This bulletin addresses the common issues resulting from improper torque application on transmission bolts, including fluid leaks and transmission damage. It emphasizes following manufacturer-recommended torque specifications.

2011-2015 Chrysler 300 with W5A580 Transmission

Resolution: Always use a calibrated torque wrench to tighten bolts and consult the service manual for correct values.

Updated Torque Specs for W5A580

2020-03-01

This bulletin provides updated and clarified torque specifications for various bolts on the W5A580 transmission.

2011-2020 Chrysler 300 with W5A580 Transmission

Resolution: Reference the most up-to-date service manual and torque specifications when servicing the W5A580 transmission.

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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