Fitting a 37″ Tire as a Spare on Ram: Installation Tips and Options

To fit a 37-inch tire as a spare on a Ram truck, use bed mounting with ratchet straps. First, remove the plastic shroud. Lower the tire pressure to 10 psi for a better fit. Secure the tire tightly and ensure the axle is unlocked for safe short-distance travel. Modification steps may vary, so check your vehicle specifications.

Installation options include using a specialized tire carrier designed for larger tires or modifying the existing spare tire mount. An aftermarket swing-out carrier can provide easy access while allowing for larger tire dimensions. Also, consider inflation and tire pressure monitoring systems; larger tires may require different specifications.

In addition to these installation tips, it’s essential to have the right tools on hand, including a lug wrench and jack. Ensuring your spare is in good condition will enhance your truck’s reliability on the road.

With an understanding of the installation process, you may want to explore compatibility issues between your 37” tire and nearby components. This transition will help ensure the single spare does not disrupt overall vehicle performance.

What Is the Process for Fitting a 37″ Tire as a Spare on a Ram?

Fitting a 37” tire as a spare on a Ram involves replacing the standard tire with a larger size that can support the vehicle’s performance and safety. This process includes assessing the compatibility of the spare tire with the vehicle’s suspension, wheel wells, and gear ratio.

According to Ram’s official maintenance guidelines, the proper tire size can be determined through the vehicle’s manual or dealer recommendations. These guidelines ensure that the spare tire fits within safety parameters and does not interfere with the vehicle’s operation.

Various aspects include checking the truck’s load capacity, ensuring adequate clearance in wheel wells, and maintaining proper inflation levels. The vehicle’s suspension may also require modifications to accommodate the larger tire.

The Tire and Rim Association specifies that using non-standard tires may affect traction, handling, and overall safety. Additional sources suggest potential impacts on the vehicle’s speedometer calibration due to differences in tire circumference.

Fitting larger tires can be caused by off-road needs, personal preferences, or tire wear. It’s important to assess whether these tires will fulfill specific needs without compromising safety.

Studies show that oversized tires can enhance off-road capabilities but may lead to increased fuel consumption by about 10-15%. The Fuel Economy Guide states that such changes impact long-term vehicle performance.

The broader impact includes enhanced off-road performance, potential legal implications regarding tire size regulations, and cost implications for fuel efficiency and tire replacement.

For practical examples, many truck enthusiasts have reported improved off-road handling but experienced declining fuel efficiency with larger tires.

To manage these issues, experts recommend consulting a tire professional regarding compatibility and making necessary vehicle modifications. Proper alignment and adjusting the speedometer are crucial steps to ensure safety and performance.

Strategies to mitigate challenges include using tire pressure monitoring systems and maintaining regular vehicle check-ups. Additionally, adopting manufacturer-recommended practices is essential for maintaining vehicle integrity and safety.

What Tools Do You Need to Install a 37″ Tire as a Spare on a Ram?

To install a 37” tire as a spare on a Ram, you need specific tools and equipment.

  1. Tools Required:
    – Lug wrench
    – Jack
    – Jack stands
    – Tire inflator
    – Torque wrench
    – Wheel chocks

The following tools and equipment are essential for a successful installation of a 37” tire, but individual preferences and vehicle specifications may vary.

  1. Detailed Explanation of Required Tools:

  2. Lug Wrench:
    A lug wrench is a tool used to loosen and tighten the lug nuts on your wheel. It typically comes in either a cross shape or a socket. Properly secured lug nuts are critical for the safety of the wheel.

  3. Jack:
    A jack allows you to lift the vehicle off the ground. This is crucial when removing the old tire and installing the new one. You should use a hydraulic or floor jack for stability and ease of use.

  4. Jack Stands:
    Jack stands are used in conjunction with a jack. They provide support once the vehicle is lifted. This is vital for safety, as a jack alone may fail or slip.

  5. Tire Inflator:
    A tire inflator is used to ensure the new tire is properly inflated to the manufacturer’s recommended pressure. Correct inflation affects handling and safety.

  6. Torque Wrench:
    A torque wrench measures and applies the correct amount of force on the lug nuts. This ensures they are neither too loose nor too tight. Over-tightening can lead to stripping threads or damaging the wheel.

  7. Wheel Chocks:
    Wheel chocks prevent the vehicle from rolling while you work on it. Placing them behind the wheels that remain on the ground is a simple yet effective safety measure.

These tools comprise a basic kit for installing a spare tire on a Ram. Depending on individual comfort and experience with vehicle maintenance, some users might prefer additional tools or equipment.

What Are the Compatibility Requirements for a 37″ Spare Tire on a Ram?

The compatibility requirements for a 37” spare tire on a Ram include specific wheel size, bolt pattern, and suspension setup.

  1. Wheel size specifications
  2. Bolt pattern compatibility
  3. Suspension modifications
  4. Gear ratio adjustments
  5. Clearance and fitment checks

Fitting a 37” spare tire may require different considerations depending on the specific Ram model and its modifications. Below, I provide detailed explanations for each compatibility requirement.

  1. Wheel Size Specifications: Wheel size specifications refer to the diameter and width measurements of the wheel used for the spare tire. A 37” tire typically fits on a wheel with a width ranging from 9 to 12 inches. Additionally, the tire’s sidewall height must complement the overall diameter to maintain an appropriate ride quality and handling performance.

  2. Bolt Pattern Compatibility: Bolt pattern compatibility denotes the arrangement of bolt holes used to attach the wheel to the hub. Most Ram trucks have a 5×5.5 (or 6×5.5) bolt pattern. When selecting a spare tire, ensure that it aligns with the vehicle’s original bolt pattern to ensure secure mounting.

  3. Suspension Modifications: Suspension modifications may be necessary to accommodate a larger spare tire. Installing a lift kit can provide the required clearance and alter the vehicle’s suspension geometry. This can prevent rubbing during turns and ensure safe handling.

  4. Gear Ratio Adjustments: Gear ratio adjustments refer to changes made to the differential gearing to accommodate the larger tire size. A 37” tire may require a different gear ratio to maintain optimal engine performance. Failure to adjust may lead to reduced acceleration and increased strain on the transmission.

  5. Clearance and Fitment Checks: Clearance and fitment checks involve verifying that the larger tire will not interfere with other vehicle components. Before installation, inspect areas around the spare tire space, including the wheel wells and fenders, to ensure that the spare tire properly fits without obstruction.

Taking these compatibility requirements into account can aid in selecting the correct spare tire for a Ram truck, ensuring functionality and safety.

How Should You Adjust the Suspension for a 37″ Spare Tire on a Ram?

To adjust the suspension for a 37” spare tire on a Ram, you typically need to increase the suspension height by about 2 to 4 inches. This adjustment compensates for the larger tire size and helps maintain proper clearance and alignment. A common method involves installing a suspension lift kit, which usually increases ground clearance and improves overall handling.

For vehicles equipped with stock suspension, using a 37” tire may result in poor clearance and could lead to rubbing against wheel wells. A lift kit, such as a 2-inch leveling kit, can raise the front suspension. Additionally, a 4-inch suspension lift will provide even better clearance and traction while accommodating the larger tire size. Many Ram owners report increased stability and improved performance after these adjustments.

Concrete examples show that if a Ram truck initially comes with 33” tires, switching to 37” tires without adjustment can lead to a 6% increase in tire height. This can change the vehicle’s center of gravity and may affect the ride quality. Consequently, altering the suspension is crucial to avoid undesired handling characteristics, including potential body roll during cornering.

Factors influencing the necessary suspension adjustment include the truck’s weight, load distribution, and intended use (off-road vs. on-road). Heavier modifications, such as adding a winch or heavy-duty bumpers, may require additional suspension enhancements. The terrain and driving style can also affect suspension needs.

In conclusion, adjusting the suspension for a 37” spare tire on a Ram typically involves a lift kit for optimal performance. It is essential to consider the overall vehicle load and intended use when making these modifications. Further exploration could include the specific types of lift kits suitable for different Ram models or comparisons between various suspension systems.

What Are the Different Options for Mounting a 37″ Tire on a Ram?

The different options for mounting a 37” tire on a Ram include using a factory spare tire carrier, aftermarket tire carriers, hitch-mounted tire carriers, and bed-mounted tire carriers.

  1. Factory spare tire carrier
  2. Aftermarket tire carriers
  3. Hitch-mounted tire carriers
  4. Bed-mounted tire carriers

Exploring these options provides insights into their functionalities and the unique benefits each option offers.

  1. Factory Spare Tire Carrier:
    A factory spare tire carrier is designed primarily for original equipment manufacturer (OEM) tires. This type often accommodates the standard tire size attached to the vehicle. However, not all manufacturers recommend mounting larger tires, such as 37”, without modifications. The OEM carrier’s structural limitations may affect its capability to securely hold a larger tire. Users might also note that factory carriers may not provide sufficient clearance, potentially leading to handling issues.

  2. Aftermarket Tire Carriers:
    Aftermarket tire carriers are alternatives designed to accommodate larger or heavier tires. These carriers typically utilize high-strength materials that offer improved durability. Many models come with adjustable mounts, allowing for the secure fit of larger tires. Reviewers often mention enhanced off-road capabilities and aesthetic upgrades over OEM options. However, installation complexity and potential compatibility issues with existing hardware can deter some users.

  3. Hitch-Mounted Tire Carriers:
    Hitch-mounted tire carriers attach directly to the vehicle’s hitch receiver. This option enables users to carry larger tires without altering the vehicle’s structure. They tend to be versatile, often allowing for easy removal when not in use. Many enthusiasts recommend this option for its ease of use and efficiency, while some criticize it for any potential hindrance to rear access and visibility.

  4. Bed-Mounted Tire Carriers:
    Bed-mounted tire carriers are designed for trucks with a designated spot in the bed for securing a tire. These carriers are customizable and can be adjusted according to individual needs. Users appreciate this option for its secure feel and ability to keep debris out of the cabin. However, the downside is the potential limitation it imposes on bed cargo space and weight distribution.

In summary, each mounting option for a 37” tire on a Ram vehicle has its advantages and drawbacks, making it essential for vehicle owners to consider their specific needs and usage scenarios.

What Safety Precautions Should Be Taken When Installing a 37″ Tire as a Spare on a Ram?

When installing a 37” tire as a spare on a Ram, several safety precautions should be taken to ensure proper handling and installation.

  1. Ensure you have the correct tools
  2. Verify tire compatibility
  3. Inspect the tire’s condition
  4. Follow manufacturer’s guidelines
  5. Use proper lifting techniques
  6. Avoid over-tightening lug nuts
  7. Check tire pressure before use
  8. Store the tire properly

Transitioning from the safety precautions, it is essential to understand the rationale behind these guidelines in detail.

  1. Ensure You Have the Correct Tools: Having the right tools is crucial for safe tire installation. Required tools include a jack, tire iron, and possibly a torque wrench. Using appropriate tools minimizes the risk of accidents during the process.

  2. Verify Tire Compatibility: Not all tires fit all vehicles. Ensure that the 37” tire is compatible with your Ram model. Check the user manual or consult the manufacturer for specifications. Using the wrong size can affect handling and safety.

  3. Inspect the Tire’s Condition: Inspect the spare tire for any damage like cuts or punctures. A damaged tire can lead to failure when in use. Additionally, ensure that the tread is adequate for safe driving.

  4. Follow Manufacturer’s Guidelines: Adhere to the manufacturer’s recommendations regarding tire pressure, mounting, and installation. This information is typically provided in the vehicle’s user manual. Following these guidelines enhances safety and performance.

  5. Use Proper Lifting Techniques: Always use a jack on a level surface to lift the vehicle. Follow the vehicle’s manual for jack placement. Using proper lifting techniques prevents accidents and injuries.

  6. Avoid Over-tightening Lug Nuts: Over-tightening can strip threads on the lug bolts and lead to dangerous situations. Use a torque wrench to tighten lug nuts to the manufacturer’s specified torque.

  7. Check Tire Pressure Before Use: Before driving with the spare tire, ensure it is inflated to the recommended pressure. Under-inflated tires can lead to poor handling and increased wear.

  8. Store the Tire Properly: If the tire is not used immediately, store it in a cool, dry area away from direct sunlight. Proper storage protects the tire from damage and preserves its condition.

By following these precautions, you can promote safety and ensure that your spare tire is ready for use when needed.

What Common Mistakes Should You Avoid When Fitting a 37″ Tire on a Ram?

The common mistakes to avoid when fitting a 37” tire on a Ram include ignoring vehicle specifications, neglecting proper alignment, and failing to check for clearance.

  1. Ignoring vehicle specifications
  2. Neglecting proper alignment
  3. Failing to check for clearance
  4. Overestimating load capacity
  5. Skipping test drives after installation
  6. Using incompatible wheels

Understanding these mistakes helps in achieving an optimal fit and function for your 37” tires on a Ram.

  1. Ignoring Vehicle Specifications:
    Ignoring vehicle specifications occurs when owners do not consider their Ram’s manufacturer guidelines. Every vehicle has specific tire size recommendations that impact performance and safety. For instance, the recommended tire size for a Ram 1500 might vary based on the model year and drivetrain configuration. Adhering to these specifications ensures compatibility and enhances handling and stability.

  2. Neglecting Proper Alignment:
    Neglecting proper alignment affects the tire’s performance and longevity. Misalignment can lead to uneven tire wear and reduced fuel efficiency. When changing to larger tires, it is crucial to have a professional perform a wheel alignment. According to a study by the Tire Industry Association in 2020, misalignment can reduce tire life by up to 25%.

  3. Failing to Check for Clearance:
    Failing to check for clearance can result in rubbing or damage during operation. Larger tires need more space in the wheel wells, especially during turns or when the suspension compresses. Ensuring there is adequate clearance prevents potential damage to both the tires and the vehicle. Installation experts recommend measuring the space before purchasing new tires.

  4. Overestimating Load Capacity:
    Overestimating load capacity can lead to dangerous situations. Each tire has a maximum load rating that should not be exceeded. Using tires that do not meet or exceed the load requirements for the vehicle can lead to blowouts or impaired handling. The Tire and Rim Association provides detailed load rating specifications.

  5. Skipping Test Drives After Installation:
    Skipping test drives after installation can mask potential issues. A test drive allows the driver to assess handling, rubbing, and overall performance. Addressing any anomalies during the test drive helps in making adjustments before driving longer distances. Mechanics often recommend this step for safety.

  6. Using Incompatible Wheels:
    Using incompatible wheels can create mechanical problems. Not all wheels fit all tires, and using the wrong wheel can cause a poor seal or tire failure. Check the wheel width, diameter, and offset to ensure compatibility with the 37” tires chosen for a Ram.

How Can You Ensure the Proper Maintenance of a 37″ Spare Tire on a Ram for Optimal Performance?

To ensure the proper maintenance of a 37” spare tire on a Ram for optimal performance, follow regular inspections, maintain adequate tire pressure, keep it clean, and store it properly.

Regular inspections: Check the spare tire for any visible damage, such as cracks or bulges. Inspect the tread depth to ensure it meets safety standards. According to the National Highway Traffic Safety Administration, tires should have at least 2/32 inches of tread to maintain grip and prevent skidding on wet surfaces.

Maintain adequate tire pressure: Ensure the spare tire is inflated to the manufacturer-recommended pressure. For a Ram, this pressure is typically around 35 to 40 psi (pounds per square inch), which can be found in the owner’s manual or on the driver’s side door jamb. Keeping the spare properly inflated helps avoid issues when the tire is needed for replacement.

Keep it clean: Regularly clean the spare tire to remove dirt and debris. Use mild soap and water to clean the rubber surface, preventing the buildup of harmful substances that can degrade the tire material. Maintaining cleanliness can extend the tire’s lifespan and performance.

Store it properly: If the spare tire is not mounted, store it in a cool, dry place away from direct sunlight. Excessive heat and UV exposure can damage the tire’s rubber compounds, leading to cracks and reduced performance. Ideally, store the tire standing upright to maintain its shape and integrity, as lying it flat can cause deformities over time.

Following these maintenance practices can help ensure that your 37” spare tire remains in optimal condition, ready for use when needed.

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