Cadillac XT5 2017-present Drivetrain Bolt Torque Specifications & Fastener Values
Cadillac XT5 2017-present

Cadillac XT5 2017-present Drivetrain Bolt Torque Specifications

Comprehensive guide to drivetrain bolt torque specifications for all 2017-Present Cadillac XT5 models. Includes specifications for transmission, differential, driveshaft, and axle 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 Interface

Torque specifications for components that directly interface with the engine, transferring power to the transmission.

1

Flywheel Bolts

M12 x 1.25
Torque Value
59 ft-lbs (80 N·m)
Important Notes
Ensures proper clamping force to transfer engine torque effectively. Use a new set of bolts for proper torque.

Transmission

Torque specifications for various transmission components.

1

Transmission Mounting Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Securely mounts the transmission to the engine or chassis. Ensure the transmission is properly aligned before tightening.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
8.8 ft-lbs (12 N·m)
Important Notes
Bolts should be tightened in a criss-cross pattern to ensure even pressure on the gasket. This value is converted from inch pounds to foot pounds, original spec is 106 inch-lbs.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Proper torque prevents leaks from the drain and fill plugs. Use a new sealing washer if possible.
4

Transmission Output Shaft Nut

M24 x 1.5
Torque Value
120 ft-lbs (160 N·m)
Important Notes
This nut secures the output flange or yoke to the transmission. Estimated value; verify with specific service manual.

Transfer Case

Torque specifications for various transfer case components.

1

Transfer Case Mounting Bolts

M12 x 1.75
Torque Value
55 ft-lbs (75 N·m)
Important Notes
Securely mounts the transfer case to the transmission or frame. Estimated value; verify with specific service manual.
2

Transfer Case Drain and Fill Plugs

M18 x 1.5
Torque Value
33 ft-lbs (45 N·m)
Important Notes
Proper torque prevents leaks from the drain and fill plugs. Use a new sealing washer if possible.
3

Transfer Case Output Shaft Nut

M22 x 1.5
Torque Value
120 ft-lbs (160 N·m)
Important Notes
This nut secures the output flange or yoke to the transfer case. Estimated value; verify with specific service manual.

Driveshaft

Torque specifications for driveshaft and propeller shaft components.

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Value
26 ft-lbs (35 N·m)
Important Notes
Bolts that connect the driveshaft to the transmission/transfer case and differential. Tighten in a cross pattern.
2

Driveshaft Center Support Bearing Bolts

M8 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Secures the center support bearing on two-piece drive shafts. Estimated value; verify with specific service manual.

Differential

Torque specifications for differential components.

1

Differential Housing Mounting Bolts

M12 x 1.75
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Secures the differential housing to the chassis or subframe. Estimated value; verify with specific service manual.
2

Differential Drain/Fill Plug

M18 x 1.5
Torque Value
33 ft-lbs (45 N·m)
Important Notes
Proper torque prevents leaks from the drain and fill plugs. Use a new sealing washer if possible.

Axle

Torque specifications for axle, CV joint, and wheel hub components.

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Value
74 ft-lbs (100 N·m)
Important Notes
Bolts that connect the drive axles to the transmission and wheel hubs. Always replace bolts, ensure a secure joint for power transfer.
2

CV Joint/Axle Nut

M22 x 1.5
Torque Value
148 ft-lbs (200 N·m)
Important Notes
Secures the CV joint and axle to the wheel hub. Use a new nut for proper torque.

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 is using the correct torque specification important for drivetrain bolts?

Using the correct torque specification ensures that the bolts are tight enough to hold components securely together without being over-tightened, which could lead to damage such as bolt stretching, thread stripping, or component failure. Under-tightened bolts can cause components to loosen, leading to noise, vibration, and even potential failure. For example, an improperly torqued driveshaft bolt can cause excessive vibration and eventually component damage.

Q2

What happens if I over-torque a drivetrain bolt?

Over-torquing a bolt can stretch it beyond its yield point, weakening it and increasing the risk of failure. It can also damage the threads in the component or bolt, making future removal difficult or impossible. In some cases, over-torquing can even crack the component itself. Consider a transfer case bolt – over-torquing can crush the housing, causing leaks or internal damage.

Q3

Can I reuse drivetrain bolts after they've been removed?

It is generally recommended to replace critical drivetrain bolts, especially torque-to-yield (TTY) bolts, after they've been removed. These bolts are designed to stretch upon tightening, and reusing them can lead to reduced clamping force and potential failure. Standard bolts can sometimes be reused if they are in good condition and not showing signs of damage but it is always best to consult the manufacturer service manual for specific guidance. For example, driveshaft flange bolts are often single use and require replacement.

Q4

What is the difference between torque and torque-to-yield (TTY) bolts?

Torque bolts are tightened to a specific torque value, whereas torque-to-yield (TTY) bolts are tightened to a specified torque and then further tightened a specific angle. TTY bolts are designed to stretch upon installation, providing optimal clamping force. TTY bolts are one-time use. Examples include many transmission and rear differential cover bolts.

Q5

How often should I inspect my drivetrain components and fasteners?

Drivetrain components should be inspected regularly as part of routine maintenance, such as during oil changes or tire rotations. Specifically, visually check for loose or missing fasteners, leaks, and unusual wear or damage. Listen for noises coming from the driveline while driving, such as clunks, grinding, or vibrations. Drivetrain inspections are crucial for preventing costly repairs down the road. As an example, during a tire rotation, inspect the driveshaft and differential for leaks or worn 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 (1/2 inch drive)

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

  • Click-type mechanism for accurate readings
  • Ratchet mechanism for ease of use
  • Scales in both lb-ft and Nm
Learn more

Torque Wrench (3/8 inch drive)

A calibrated torque wrench for smaller bolts and fasteners in the drivetrain.

  • Click-type mechanism for accurate readings
  • Ratchet mechanism for ease of use
  • Scales in both lb-in and Nm
Learn more

Socket Set (Metric)

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

  • Variety of sizes
  • Durable construction
  • Clear size markings
Learn more

Extension Bars

Various lengths of extension bars to reach recessed bolts and fasteners

  • Multiple lengths for various access points
  • Durable construction
  • Secure socket connection
Learn more

Universal Joint Adapter

Allows for torque application at an angle to access difficult bolts

  • Durable construction
  • Allows for angled torqueing
  • Various sizes
Learn more
Service Procedures

Front Axle Nut Torque Procedure

Procedure for torquing the front axle nut to specification.

  • Clean the threads of the axle and nut.
  • Install new axle nut.
  • Tighten the axle nut to the initial torque specification.
  • Rotate the wheel a full turn
  • Tighten to final torque specification.
View full procedure

Rear Differential Mount Bolt Torque Procedure

Procedure for torquing the rear differential mount bolts to specification.

  • Inspect the differential mount bolts for any damage.
  • Install the bolts and start them by hand.
  • Tighten the bolts to the initial torque specification in a cross pattern.
  • Tighten to final torque specification in a cross pattern.
View full procedure

Driveshaft Bolt Torque Procedure

Procedure for torquing the driveshaft bolts to specification.

  • Inspect driveshaft bolt holes and surfaces.
  • Install driveshaft bolts and start them by hand.
  • Torque the bolts evenly in a star pattern to the initial specification.
  • Torque the bolts evenly in a star pattern to final torque specification.
View full procedure
Technical Service Bulletins

Driveline Vibration at Highway Speeds

2020-05-15

Reports of driveline vibrations occurring at highway speeds, possibly due to improperly torqued driveshaft bolts.

2017-2019

Resolution: Inspect and torque driveshaft bolts to the revised specification. Ensure proper alignment of driveshaft.

Rear Differential Noise

2021-11-22

Reports of rear differential noise, suspected to be caused by improperly torqued differential mounting hardware.

2017-2021

Resolution: Inspect and torque all rear differential mounting bolts to specification. Replace any damaged bolts.

Front Axle Nut Retorque Procedure

2022-08-01

Revised procedure for torquing the front axle nut due to reported loosening over time. Requires re-torque after initial installation.

2017-2022

Resolution: Follow the updated front axle nut torque procedure which includes a re-torque step after a specified time or mileage.

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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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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