Jeep Wrangler 2007-2017 Drivetrain Bolt Torque Specifications & Fastener Values
Jeep Wrangler 2007-2017

Jeep Wrangler 2007-2017 Drivetrain Bolt Torque Specifications

Detailed torque specifications for drivetrain bolts on the 2007-2017 Jeep Wrangler, including transmission, transfer case, and differential 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

Components that make up the engine, including main bearings, connecting rods, flywheel, and crankshaft pulley/harmonic balancer.

1

Main Bearing Bolts

M14 x 1.5
Torque Value
100 ft-lbs (135 N·m)
Important Notes
Secures the main bearings to the engine block, ensuring proper engine operation and preventing damage to the crankshaft.
2

Connecting Rod Nuts

M10 x 1.25
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Holds the connecting rods to the crankshaft, maintaining proper engine balance and preventing damage to the engine.
3

Flywheel Bolts

M12 x 1.5
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Secures the flywheel to the crankshaft, ensuring proper engine operation and preventing damage to the transmission.
4

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Value
130 ft-lbs (176 N·m)
Important Notes
Holds the crankshaft pulley/harmonic balancer in place, maintaining proper engine balance and preventing damage to the serpentine belt.

Transmission

Components that make up the transmission, including transmission mounting bolts, transmission oil pan bolts, and transmission drain and fill plugs.

1

Transmission Mounting Bolts

M12 x 1.5
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Secures the transmission to the engine and frame, ensuring proper transmission operation and preventing damage to the transmission mounts.
2

Transmission Oil Pan Bolts

M8 x 1.25
Torque Value
165 inch-lbs (19 N·m)
Important Notes
Holds the transmission oil pan in place, preventing oil leaks and ensuring proper transmission operation.
3

Transmission Drain and Fill Plugs

M10 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the transmission drain and fill plugs, preventing fluid leaks and ensuring proper transmission operation.

Driveshaft and axles

Components that make up the driveshaft and axles, including propeller/driveshaft bolts, CV joint/axle nut, and drive axle/half shaft bolts.

1

Propeller/Drive Shaft Bolts

M14 x 1.5
Torque Value
45 ft-lbs (61 N·m)
Important Notes
Secures the driveshaft to the transmission and differential, ensuring proper drivetrain operation and preventing damage to the driveshaft.
2

CV Joint/Axle Nut

M16 x 1.5
Torque Value
185 ft-lbs (251 N·m)
Important Notes
Holds the CV joint/axle nut in place, maintaining proper axle operation and preventing damage to the CV joint.
3

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Value
70 ft-lbs (95 N·m)
Important Notes
Secures the drive axle/half shaft to the differential, ensuring proper drivetrain operation and preventing damage to the axle.

Differential

Components that make up the differential, including differential drain/fill plug.

1

Differential Drain/Fill Plug

M10 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the differential drain and fill plugs, preventing fluid leaks and ensuring proper differential operation.

Transfer case

Components that make up the transfer case, including transfer case drain/fill plug.

1

Transfer Case Drain/Fill Plug

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Secures the transfer case drain and fill plugs, preventing fluid leaks and ensuring proper transfer case operation.

Engine block to transmission bellhousing

Components that connect the engine block to the transmission bellhousing.

1

Engine Block to Transmission Bellhousing Bolts

M14 x 1.5
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Secures the engine block to the transmission bellhousing, ensuring proper engine and transmission alignment and preventing damage to the engine and transmission.

Transmission crossmember

Components that connect the transmission crossmember to the frame.

1

Transmission Crossmember Bolts

M12 x 1.5
Torque Value
50 ft-lbs (68 N·m)
Important Notes
Secures the transmission crossmember to the frame, ensuring proper transmission support and preventing damage to the transmission mounts.

Driveshaft center bearing

Components that connect the driveshaft center bearing to the frame.

1

Driveshaft Center Bearing Bolts

M10 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Secures the driveshaft center bearing to the frame, ensuring proper driveshaft operation and preventing damage to the driveshaft.

Axle shaft

Components that connect the axle shaft to the differential.

1

Axle Shaft Bolts

M14 x 1.5
Torque Value
80 ft-lbs (108 N·m)
Important Notes
Secures the axle shaft to the differential, ensuring proper axle operation and preventing damage to the axle shaft.

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 are the torque specifications for the driveshaft bolts on a 2007-2017 Jeep Wrangler?

The torque specification for the driveshaft bolts on a 2007-2017 Jeep Wrangler is typically 70-80 ft-lbs (95-108 Nm). Always refer to the vehicle's service manual for the exact specifications, as they may vary slightly depending on the model year and drivetrain configuration.

Q2

How often should I check the torque on my drivetrain components?

It is recommended to check the torque on drivetrain components, such as driveshaft bolts and axle nuts, during routine maintenance or after any significant off-road use. For most drivers, checking every 10,000-15,000 miles or annually is sufficient. However, if you frequently drive in harsh conditions, consider checking more often.

Q3

Can I reuse the same bolts when reassembling the drivetrain?

It is generally not recommended to reuse bolts, especially those subjected to high stress, such as driveshaft or axle bolts. Over time, bolts can stretch or weaken, compromising their integrity. Always use new, manufacturer-recommended bolts when reassembling critical drivetrain components.

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 precision tool used to apply a specific torque to a fastener, such as a bolt or nut.

  • Adjustable torque settings
  • Calibrated for accuracy
Learn more

Socket Set

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

  • Includes both metric and standard sizes
  • Durable construction
Learn more

Breaker Bar

A long-handled tool used to loosen tight bolts before applying torque.

  • High leverage for tough bolts
  • Durable steel construction
Learn more
Service Procedures

Driveshaft Bolt Torque Procedure

Detailed steps to properly torque the driveshaft bolts on a 2007-2017 Jeep Wrangler.

  • Lift the vehicle and secure it on jack stands.
  • Remove the driveshaft bolts using a socket set and breaker bar.
  • Clean the bolt threads and apply thread locker if recommended.
  • Reinstall the bolts and tighten them to the specified torque using a torque wrench.
  • Double-check the torque settings to ensure accuracy.
View full procedure

Transfer Case Bolt Torque Procedure

Steps to torque the transfer case mounting bolts correctly.

  • Ensure the vehicle is on a flat surface and the parking brake is engaged.
  • Locate the transfer case mounting bolts.
  • Use a torque wrench to tighten the bolts to the manufacturer's specified torque.
  • Verify the torque settings after initial tightening.
View full procedure
Technical Service Bulletins

Driveshaft Bolt Loosening Issue

2015-03-12

Reports of driveshaft bolts loosening over time due to insufficient torque.

2007-2015 Jeep Wrangler

Resolution: Ensure bolts are torqued to the correct specification and apply thread locker as recommended.

Transfer Case Mounting Bolt Failure

2018-07-25

Some models experienced transfer case mounting bolt failures due to improper torque.

2012-2017 Jeep Wrangler

Resolution: Replace affected bolts and torque to the updated specification provided by the manufacturer.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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