Dodge Caravan 1991-1995 Suspension Bolt Torque Specifications & Fastener Values
Dodge Caravan 1991-1995

Dodge Caravan 1991-1995 Suspension Bolt Torque Specifications

Detailed torque specifications for suspension bolts on the 1991-1995 Dodge Caravan, including control arms, struts, and sway bar 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

Front Suspension

Torque specifications for the front suspension components, including struts, sway bar, control arms, and steering linkage. These components are critical for vehicle handling and stability.

1

Strut-to-Steering Knuckle Bolts (Lower Mounting)

M14 x 1.5
Torque Value
105 ft-lbs (142 N·m)
Important Notes
Safety-critical fastener. Ensure proper torque for strut stability and steering control.
2

Strut-to-Body (Upper Mount) Bolts

M12 x 1.75
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Ensure proper torque to prevent rattling and ensure secure mounting. Estimated bolt size.
3

Sway Bar End Link to Strut Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Ensure proper torque for effective sway bar function. Estimated bolt size.
4

Sway Bar Frame Mount Bolts

M10 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Ensure proper torque to prevent sway bar movement. Estimated bolt size.
5

Ball Joint to Lower Control Arm Bolts

M14 x 2.0
Torque Value
70 ft-lbs (95 N·m)
Important Notes
Safety-critical fastener. Ensure proper torque for steering and suspension integrity. If riveted, replace with grade 8 bolts and use specified torque. Estimated bolt size.
6

Lower Control Arm to Frame Bolts

M14 x 2.0
Torque Value
75 ft-lbs (102 N·m)
Important Notes
Safety-critical fastener. Ensure proper torque for maintaining suspension geometry. Estimated value based on similar applications.
7

Tie Rod End to Steering Knuckle Nut

M12 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Safety-critical fastener. Always use a new cotter pin after tightening. Estimated bolt size.

Rear Suspension

Torque specifications for rear suspension components, including shock absorbers, leaf springs (if equipped), and control arms.

1

Shock Absorber Lower Mount Bolt

M12 x 1.75
Torque Value
55 ft-lbs (75 N·m)
Important Notes
Ensure proper torque for shock absorber function. Estimated bolt size.
2

Shock Absorber Upper Mount Bolts

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Ensure proper torque for a secure mount. Estimated bolt size.
3

Leaf Spring U-bolts

M14 x 2.0
Important Notes
Safety-critical fastener. Torque in a criss-cross pattern. If vehicle is equipped with coil springs, disregard this section. Estimated bolt size.
4

Leaf Spring Shackle Bolts

M12 x 1.75
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Ensure proper torque for correct suspension movement. If vehicle is equipped with coil springs, disregard this section. Estimated bolt size.
5

Coil Spring Lower Mount (Control Arm) Bolt

M14 x 2.0
Torque Value
70 ft-lbs (95 N·m)
Important Notes
Safety-critical fastener. Ensure proper torque for suspension integrity and vehicle control. If vehicle is equipped with leaf springs, disregard this section. Estimated value based on similar applications.
6

Panhard Rod Bolt

M12 x 1.75
Torque Value
70 ft-lbs (95 N·m)
Important Notes
Safety-critical fastener. Ensure proper torque for correct axle location. If vehicle is not equipped with panhard rod, disregard this section. Estimated value based on similar applications.

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 are torque specifications important for suspension bolts?

Proper torque is critical for suspension safety and performance. Under-torquing can lead to bolts loosening, causing components to shift or fail, resulting in dangerous driving conditions. Over-torquing can stretch or break bolts, also leading to failure. Precise torque ensures proper clamping force, maintaining the designed geometry and stability of the suspension system. This directly affects vehicle handling, tire wear, and overall safety.

Q2

What happens if I don't have a torque wrench?

While a torque wrench is the best tool, you can approximate torque using a standard wrench and experience; however, this is not recommended for critical components like suspension. If a torque wrench isn't available for an emergency, tighten bolts firmly but don't overtighten. It's essential to then have the bolts properly torqued as soon as possible by a professional or with a proper torque wrench. Improperly tightened bolts can lead to component damage, premature wear, or catastrophic failure. If you are unsure, it's best to get a torque wrench for this kind of work.

Q3

Should I use threadlocker on suspension bolts?

Generally, threadlocker isn't required for most suspension bolts on a 1991-1995 Dodge Caravan, because they are usually secured with locknuts or serrated washers. However, if the manufacturer specifies it for a particular bolt, or you are replacing older bolts that may have lost some thread friction, using a medium-strength (e.g., blue) threadlocker can provide added security against loosening. Always check the repair manual and follow the instructions.

Q4

Do I need to replace suspension bolts every time I remove them?

While not always mandatory, it is highly recommended, especially for critical bolts. Bolts can stretch when torqued, and their integrity can be compromised during removal. Replacing them ensures that the fasteners are within specification and provide the required clamping force. Using old bolts increases the chance of future failures. When working on your suspension, it's a good practice to get new hardware alongside the parts you are replacing.

Q5

What are the common torque specifications for a 1991-1995 Dodge Caravan front suspension?

While specific torque values vary by component and manufacturer, common specifications you'll encounter include: strut-to-knuckle bolts around 60-80 ft-lbs, sway bar end link bolts around 30-45 ft-lbs, and lower control arm bolts ranging from 70-100 ft-lbs. *Always consult your specific repair manual for your model year and engine for exact values*. Using generic figures can lead to dangerous situations. Make sure to look up the specific torque specifications for YOUR vehicle.

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 is essential for accurately tightening suspension bolts to their specified torque values.

  • 1/2 inch drive for common suspension fasteners
  • Wide torque range (typically 20-250 ft-lbs)
  • Click-type or digital readout for accurate measurement
Learn more

Torque Wrench (3/8 inch drive)

A smaller torque wrench is useful for smaller suspension fasteners.

  • 3/8 inch drive for smaller suspension components
  • Lower torque range (typically 5-100 ft-lbs)
  • Click-type or digital readout for accurate measurement
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is needed to fit the various bolt and nut sizes on the suspension.

  • Common sizes from 10mm to 24mm
  • Standard and deep sockets
  • 6-point sockets for better grip
Learn more

Wrench Set (Metric)

A set of metric wrenches may be necessary to hold the fastener while torquing.

  • Common sizes from 10mm to 24mm
  • Open end and box end wrenches
Learn more

Breaker Bar

A breaker bar provides extra leverage to initially loosen stubborn suspension bolts.

  • Long handle for increased torque
  • 1/2 inch or 3/8 inch drive compatibility
Learn more
Service Procedures

Front Strut Assembly Installation & Torque

This procedure covers the installation of the front strut assembly and tightening the relevant bolts.

  • Install strut assembly into position.
  • Install the lower strut bolts (usually two or three) and loosely install new nuts.
  • Install upper strut nuts and loosely install nuts.
  • Using the specified torque values from a service manual, tighten all bolts in a crisscross pattern. Lower first, then upper.
  • Recheck torque after 50-100 miles.
View full procedure

Rear Shock Absorber Installation & Torque

This procedure covers the installation of the rear shock absorber and tightening the relevant bolts.

  • Install shock absorber into position.
  • Install upper and lower bolts and nuts, do not tighten yet.
  • Tighten the lower shock absorber bolt first to its specified torque.
  • Tighten the upper shock absorber bolt to its specified torque.
  • Recheck torque after 50-100 miles.
View full procedure

Sway Bar Installation & Torque

This procedure covers the installation of the sway bar and tightening the relevant bolts.

  • Install sway bar links to the control arm, and loosely install the hardware.
  • Install sway bar bushings and brackets onto the frame, and loosely install the hardware.
  • Tighten the frame brackets to the specified torque.
  • Tighten the sway bar end links to the specified torque.
  • Recheck torque after 50-100 miles.
View full procedure

Control Arm Installation & Torque

This procedure covers the installation of the control arm and tightening the relevant bolts. Always replace hardware.

  • Install control arm into position.
  • Install and loosely tighten bolts for the control arm.
  • With vehicle weight on the control arm, tighten control arm bolts to specified torque.
  • Recheck torque after 50-100 miles.
View full procedure
Technical Service Bulletins

Front Strut Bolt Corrosion Issues

1994-05-15

Reports of excessive corrosion on front strut mounting bolts, leading to difficulty in removal and compromised torque readings.

1991-1995 Dodge Caravan

Resolution: Inspect bolts for corrosion. Replace with new bolts and apply anti-seize compound upon installation. Torque to specification.

Rear Shock Mounting Bolt Loosening

1993-11-20

Instances of rear shock mounting bolts loosening after installation, potentially causing noise and instability.

1991-1993 Dodge Caravan

Resolution: Replace all rear shock mounting bolts, apply thread-locking compound during installation and torque to specification. Recheck torque after 50-100 miles.

Sway Bar Link Bolt Breakage

1992-02-28

Reports of sway bar end links and their bolts breaking due to stress or overtightening

1991-1992 Dodge Caravan

Resolution: Replace sway bar end links and associated hardware, and torque to manufacturer specification. Consider the condition of the sway bar bushings as well.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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