Infiniti M45 2006-2010 Drivetrain Bolt Torque Specifications
Detailed torque specifications for the drivetrain components of the 2006-2010 Infiniti M45, including transmission, driveshaft, and differential bolts.
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 and transmission interface
Bolts securing the engine block to the transmission bellhousing, ensuring proper alignment and preventing damage to the engine and transmission.
1 Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
Engine Block to Transmission Bellhousing Bolts
M14 x 1.5Torque Value
Important Notes
Transmission mounting and oil pan
Bolts securing the transmission to the engine and chassis, and the oil pan to the transmission.
1 Transmission Mounting Bolts
M12 x 1.25
Transmission Mounting Bolts
M12 x 1.25Torque Value
2 Transmission Oil Pan Bolts
M8 x 1.25
Transmission Oil Pan Bolts
M8 x 1.25Torque Value
Drive axle and half shaft
Bolts securing the drive axle and half shaft to the transmission and differential.
1 Drive Axle/Half Shaft Bolts
M16 x 1.5
Drive Axle/Half Shaft Bolts
M16 x 1.5Torque Value
Cv joint and axle nut
Bolts securing the CV joint to the axle.
1 CV Joint/Axle Nut
M20 x 1.5
CV Joint/Axle Nut
M20 x 1.5Torque Value
Propeller and drive shaft
Bolts securing the drive shaft to the transmission and differential.
1 Propeller/Drive Shaft Bolts
M14 x 1.5
Propeller/Drive Shaft Bolts
M14 x 1.5Torque Value
Differential and axle shaft
Bolts securing the differential and axle shaft to the chassis and hub.
1 Differential Drain/Fill Plug
M12 x 1.25
Differential Drain/Fill Plug
M12 x 1.25Torque Value
2 Axle Shaft to Hub Bolts
M14 x 1.5
Axle Shaft to Hub Bolts
M14 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 What is the torque specification for the driveshaft bolts on a 2006-2010 Infiniti M45?
What is the torque specification for the driveshaft bolts on a 2006-2010 Infiniti M45?
The driveshaft bolts on a 2006-2010 Infiniti M45 should be torqued to 25-30 Nm (18-22 ft-lbs). Ensure the bolts are tightened evenly to avoid misalignment or vibration issues.
Q2 How often should I check the torque on drivetrain components?
How often should I check the torque on drivetrain components?
It is recommended to check the torque on drivetrain components, such as driveshaft bolts and differential mounting bolts, every 30,000 miles or after any significant drivetrain service. This ensures proper alignment and prevents loosening due to vibrations.
Q3 Can I reuse the same bolts when servicing the drivetrain?
Can I reuse the same bolts when servicing the drivetrain?
It is generally not recommended to reuse drivetrain bolts, as they are often torque-to-yield (TTY) bolts designed for one-time use. Reusing them can lead to improper torque and potential failure. Always consult the service manual or replace with OEM-specified bolts.
Q4 What happens if I over-torque the drivetrain bolts?
What happens if I over-torque the drivetrain bolts?
Over-torquing drivetrain bolts can cause thread damage, bolt stretching, or even component failure. This can lead to drivetrain vibration, misalignment, or catastrophic failure. Always use a calibrated torque wrench and follow the manufacturer's specifications.
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 precision tool for applying specific torque to bolts.
- Adjustable torque settings
- Calibrated for accuracy
Socket Set
A set of sockets for various bolt sizes.
- Includes metric sizes
- Durable construction
Thread Locker
A chemical compound to secure bolts in place.
- Prevents loosening due to vibration
- High-temperature resistance
Service Procedures
Driveshaft Bolt Torque Specification
Procedure to apply correct torque to driveshaft bolts.
- Lift the vehicle and secure it on jack stands.
- Locate the driveshaft bolts connecting to the differential.
- Clean the bolt threads and apply thread locker.
- Tighten the bolts to the specified torque using a torque wrench.
- Double-check torque settings and ensure proper alignment.
Transmission Mount Bolt Torque Specification
Procedure to apply correct torque to transmission mount bolts.
- Support the transmission with a jack.
- Locate the transmission mount bolts.
- Clean the bolt threads and apply thread locker.
- Tighten the bolts to the specified torque using a torque wrench.
- Recheck torque settings and ensure the transmission is properly seated.
Technical Service Bulletins
Drivetrain Vibration Issue
2008-05-15Some vehicles may experience drivetrain vibrations due to improperly torqued bolts.
Resolution: Inspect and retorque all drivetrain bolts to factory specifications.
Differential Bolt Loosening
2009-11-20Reports of differential bolts loosening over time, causing noise and vibration.
Resolution: Apply thread locker and retorque differential bolts to specified values.
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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.