Chrysler 300 2011-present Drivetrain Bolt Torque Specifications
This page provides detailed torque specifications for various bolts related to the drivetrain of the 2011 to present Chrysler 300, including differential, driveshaft, and axle components. Ensuring proper torque is critical for vehicle safety and performance.
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
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.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
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.
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.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
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 section covers the bolts that connect the engine and transmission, including critical components like the flywheel and torque converter.
1 Flywheel Bolts
M10 x 1.25
Flywheel Bolts
M10 x 1.25Torque Value
Important Notes
2 Torque Converter Bolts
M10 x 1.5
Torque Converter Bolts
M10 x 1.5Torque Value
Important Notes
3 Transmission Mounting Bolts
M12 x 1.75
Transmission Mounting Bolts
M12 x 1.75Torque Value
Important Notes
Transmission System
This section includes torque specifications for components directly related to the transmission, including the oil pan and drain/fill plugs.
1 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0Torque Value
Important Notes
2 Transmission Drain Plug
M18 x 1.5
Transmission Drain Plug
M18 x 1.5Torque Value
Important Notes
3 Transmission Fill Plug
M18 x 1.5
Transmission Fill Plug
M18 x 1.5Torque Value
Important Notes
4 Transmission Fluid Cooler Line Fittings
M16 x 1.5
Transmission Fluid Cooler Line Fittings
M16 x 1.5Torque Value
Important Notes
Driveshaft Axle
This section includes the torque specifications for the components that transmit power from the transmission to the wheels, including drive shafts, CV joints, and related components.
1 Drive Axle/Half Shaft Bolts
M10 x 1.25
Drive Axle/Half Shaft Bolts
M10 x 1.25Torque Value
Important Notes
2 CV Joint/Axle Nut
M24 x 1.5
CV Joint/Axle Nut
M24 x 1.5Torque Value
Important Notes
3 Propeller/Drive Shaft Bolts
M10 x 1.25
Propeller/Drive Shaft Bolts
M10 x 1.25Torque Value
Important Notes
4 Driveshaft Center Support Bearing Bolts
M10 x 1.5
Driveshaft Center Support Bearing Bolts
M10 x 1.5Torque Value
Important Notes
Differential Transfer Case
This section covers the torque specifications for differential and transfer case components, including mounting, drain/fill plugs, and ring gear bolts.
1 Differential Ring Gear Bolts
M12 x 1.75
Differential Ring Gear Bolts
M12 x 1.75Torque Value
Important Notes
2 Differential Carrier Mounting Bolts
M14 x 2.0
Differential Carrier Mounting Bolts
M14 x 2.0Torque Value
Important Notes
3 Differential Drain Plug
M18 x 1.5
Differential Drain Plug
M18 x 1.5Torque Value
Important Notes
4 Differential Fill Plug
M18 x 1.5
Differential Fill Plug
M18 x 1.5Torque Value
Important Notes
5 Transfer Case Drain Plug
M18 x 1.5
Transfer Case Drain Plug
M18 x 1.5Torque Value
Important Notes
6 Transfer Case Fill Plug
M18 x 1.5
Transfer Case Fill Plug
M18 x 1.5Torque Value
Important Notes
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
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
Diagnostic Steps
Visual inspection, torque verification, thread assessment
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
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
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
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 for drivetrain bolts?
Why is it important to use the correct torque specifications for drivetrain bolts?
Using the correct torque specifications is crucial for maintaining the structural integrity and proper function of the drivetrain. Under-torqued bolts can loosen over time, leading to component failure, vibrations, and potential accidents. Over-torquing can stretch or break bolts, damage threads, or distort components, also leading to failure. For example, a driveshaft bolt that's too loose could cause the driveshaft to separate at speed. A bolt that's over-torqued on the transmission pan could warp the pan, causing a leak.
Q2 What type of lubricant should be used on drivetrain bolts?
What type of lubricant should be used on drivetrain bolts?
Typically, a light coating of clean engine oil or a thread lubricant specified by the manufacturer should be applied to bolt threads unless specifically stated otherwise. Always consult the repair manual for specific instructions. Some bolts use thread-locking compounds that must be applied in the specific manner indicated. For example, if you are reinstalling a driveshaft, some bolts will be specified with thread-locking compound. If you apply it when not required, or fail to apply when specified, this could lead to component failure.
Q3 Can I reuse drivetrain bolts?
Can I reuse drivetrain bolts?
While some bolts can be reused, it's generally recommended to replace torque-to-yield (TTY) bolts or fasteners that have been removed, especially in critical drivetrain components. TTY bolts are designed to stretch upon initial tightening, making them unsuitable for reuse. Reusing such bolts can lead to inconsistent clamping force and component failure. For example, some of the bolts that secure the differential carrier to the housing or that secure the flexplate to the engine are torque to yield, and must be replaced.
Q4 How often should I check the torque on my drivetrain bolts?
How often should I check the torque on my drivetrain bolts?
It's good practice to check the torque on drivetrain bolts periodically, especially after performing repairs or maintenance. This is particularly true for new or recently reinstalled components. A common interval is to re-check after the first 500 miles after a repair. Check the manufacturer's recommendations for specific components, as some will require more frequent checks. For example, if you've had your differential serviced, you should check the housing bolt torque after a short time.
Q5 What tools do I need to torque drivetrain bolts correctly?
What tools do I need to torque drivetrain bolts correctly?
You will need a calibrated torque wrench that is appropriate for the torque range you are using. You will also need sockets that fit the bolt heads snugly. Avoid using worn sockets. Additionally, you should use a universal joint if you need to reach bolts that are not directly accessible. For example, some bolts on the transmission might be difficult to access without the use of a universal joint.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
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
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
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 precise manufacturer-specified torque values, ensuring proper clamping force and preventing damage.
- Ability to set specific torque values
- Accurate measurement within a specified range
Socket Set
A comprehensive socket set in various sizes (both metric and potentially standard) is needed to fit the different bolt heads used throughout the drivetrain.
- Variety of socket sizes
- Deep and shallow sockets
Extension Bars and Universal Joints
These tools help reach bolts in tight spaces or at awkward angles.
- Extends the reach of sockets
- Allows for angled access
Jack Stands or Vehicle Lift
Necessary to safely lift and support the vehicle while working on the drivetrain components.
- Safe and stable vehicle support
- Allows access to undercarriage
Service Manual
The official service manual provides detailed torque specifications for all drivetrain components.
- Specific and accurate torque specs
- Detailed diagrams and procedures
Service Procedures
Driveshaft Bolt Torque Procedure
This procedure outlines how to correctly torque driveshaft bolts to the correct spec.
- Locate the driveshaft bolts
- Clean the threads of all the bolts
- Apply correct thread locker if required by service manual
- Using the specified torque pattern and torque value, tighten the bolts
- Double check each bolt to ensure all are at the correct value
Differential Cover Bolt Torque Procedure
This procedure outlines how to correctly torque differential cover bolts to the correct spec.
- Locate the differential cover bolts
- Clean the threads of all the bolts
- Apply correct thread locker if required by service manual
- Using the specified torque pattern and torque value, tighten the bolts
- Double check each bolt to ensure all are at the correct value
Transmission Mount Bolt Torque Procedure
This procedure outlines how to correctly torque transmission mount bolts to the correct spec.
- Locate the transmission mount bolts
- Clean the threads of all the bolts
- Apply correct thread locker if required by service manual
- Using the specified torque pattern and torque value, tighten the bolts
- Double check each bolt to ensure all are at the correct value
Technical Service Bulletins
Possible Driveline Vibration Due to Incorrect Torque
2014-07-15Some 2011-2014 Chrysler 300 models may experience driveline vibration due to improper torque of the driveshaft or differential bolts.
Resolution: Inspect the driveshaft and differential bolts, tighten to the recommended specification as noted in the service manual.
Differential Noise Due to Incorrect Cover Bolt Torque
2017-03-22Some 2015-2017 Chrysler 300 models may experience abnormal noise from the differential due to improperly torqued differential cover bolts.
Resolution: Inspect differential cover bolts for looseness, replace bolts if needed, and torque to spec using a criss-cross pattern
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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.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.