RAM Ram 1500 2019-present Drivetrain Bolt Torque Specifications & Fastener Values
RAM Ram 1500 2019-present

RAM Ram 1500 2019-present Drivetrain Bolt Torque Specifications

Detailed drivetrain bolt torque specifications for the 2019-Present Ram 1500, including transmission, transfer case, and axle bolts.

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 secure the engine's crankshaft, flywheel, and pulley/balancer.

1

Main Bearing Bolts

M14 x 1.5
Torque Value
100 ft-lbs (135 N·m)
Important Notes
Proper torque ensures the bearings are properly seated and the crankshaft is aligned.
2

Flywheel Bolts

M10 x 1.25
Torque Value
65 ft-lbs (88 N·m)
Important Notes
Proper torque ensures the flywheel is properly seated and the clutch or torque converter is engaged.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Value
120 ft-lbs (162 N·m)
Important Notes
Proper torque ensures the pulley/balancer is properly seated and the serpentine belt is properly tensioned.

Transmission

Components that secure the transmission to the engine or transmission crossmember, and the oil pan to the transmission.

1

Transmission Mounting Bolts

M12 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Proper torque ensures the transmission is properly aligned and supported.
2

Transmission Oil Pan Bolts

M8 x 1.25
Torque Value
100 in-lbs (11 N·m)
Important Notes
Proper torque ensures the oil pan is properly sealed and the transmission is properly lubricated.

Drivetrain

Components that secure the drivetrain, including the drive axles, CV joints, and propeller shaft.

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Proper torque ensures the axles are properly seated and the drivetrain is properly aligned.
2

CV Joint/Axle Nut

M20 x 1.5
Torque Value
185 ft-lbs (251 N·m)
Important Notes
Proper torque ensures the CV joints are properly seated and the drivetrain is properly aligned.
3

Propeller/Drive Shaft Bolts

M16 x 1.5
Torque Value
75 ft-lbs (102 N·m)
Important Notes
Proper torque ensures the propeller shaft is properly seated and the drivetrain is properly aligned.

Differential

Components that secure the differential cover and center bearing.

1

Differential Cover Bolts

M10 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Proper torque ensures the differential is properly sealed and lubricated.
2

Transfer Case Mounting Bolts

M12 x 1.25
Torque Value
50 ft-lbs (68 N·m)
Important Notes
Proper torque ensures the transfer case is properly aligned and supported.
3

Driveshaft Center Bearing Bolts

M10 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Proper torque ensures the center bearing is properly seated and the driveshaft is properly aligned.

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 is the recommended torque specification for the drivetrain bolts on my 2019-Present Ram 1500?

The recommended torque specification for the drivetrain bolts on your 2019-Present Ram 1500 can be found in your owner's manual or on the manufacturer's website. It's essential to follow the specified torque values to ensure proper installation and prevent damage to the drivetrain components.

Q2

Why is it important to follow the recommended torque specifications for drivetrain bolts?

Following the recommended torque specifications for drivetrain bolts is crucial to ensure the longevity and performance of your vehicle's drivetrain system. Over-torquing or under-torquing can lead to premature wear, damage, or even failure of critical components, resulting in costly repairs and potential safety hazards.

Q3

How often should I check and maintain the drivetrain bolts on my Ram 1500?

It's recommended to check and maintain the drivetrain bolts on your Ram 1500 at regular intervals, such as during routine oil changes or every 12,000 to 15,000 miles. This will help ensure the bolts remain tightened to the specified torque value and prevent any potential issues.

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 torque wrench for accurate torque application

  • Digital display
  • Adjustable torque range
Learn more

Socket Set

A set of sockets for drivetrain bolts

  • Metric and SAE sizes
  • Chrome vanadium steel construction
Learn more

Breaker Bar

A long, flexible bar for applying extra torque

  • Heat-treated steel construction
  • Comfort grip handle
Learn more
Service Procedures

Drivetrain Bolt Torque Specification

A procedure for applying the correct torque to drivetrain bolts

  • Locate the drivetrain bolts and ensure they are clean and free of debris
  • Apply the recommended torque specification using a torque wrench
  • Double-check the torque specification to ensure accuracy
View full procedure

Transfer Case Bolt Replacement

A procedure for replacing transfer case bolts

  • Raise the vehicle and remove the transfer case
  • Remove the old bolts and replace with new ones
  • Apply the recommended torque specification using a torque wrench
View full procedure
Technical Service Bulletins

Drivetrain Bolt Torque Specification Update

2020-02-15

An update to the drivetrain bolt torque specification for 2019-Present Ram 1500 models

2019-2022 Ram 1500

Resolution: Update the torque specification to 120 ft-lbs for all drivetrain bolts

Transfer Case Bolt Failure

2021-08-01

A technical bulletin regarding transfer case bolt failure on 2019-Present Ram 1500 models

2019-2021 Ram 1500

Resolution: Replace the transfer case bolts with new ones and apply the recommended torque specification

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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