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The Jeep Wrangler is a popular choice among off-road enthusiasts, and upgrading the axles is a common modification for those looking to enhance their vehicle’s performance. One of the most crucial aspects of these upgrades is ensuring proper tire fitment. This article will explore tire fitment options after upgrading Wrangler axles, specifically focusing on 35-inch, 37-inch, and 40-inch tires on a 2.5-inch lift.
Understanding Tire Fitment
Tire fitment refers to the compatibility of tires with the vehicle’s suspension, axles, and body. When upgrading axles, it’s essential to consider how larger tires will fit within the wheel wells, especially after a lift. A 2.5-inch lift provides additional clearance, but it’s important to ensure that the selected tire size does not cause rubbing or other issues.
Factors Influencing Tire Fitment
- Wheel Offset: The distance between the wheel’s mounting surface and the centerline of the wheel affects how far the tire will sit from the suspension components.
- Tire Width: Wider tires may require more clearance, affecting fitment.
- Backspacing: This is the distance from the mounting surface of the wheel to the back edge of the wheel. Proper backspacing ensures that the tire does not rub against the suspension or body.
- Suspension Geometry: Changes in suspension geometry can affect how the tires fit during articulation.
Tire Size Options
35-Inch Tires
35-inch tires are a popular choice for those who want a balance between off-road capability and on-road drivability. With a 2.5-inch lift, 35s typically fit well without significant modifications. However, it is advisable to check for any potential rubbing during full articulation, particularly when turning.
37-Inch Tires
Upgrading to 37-inch tires provides enhanced ground clearance and off-road performance. While many Wranglers can accommodate 37s with a 2.5-inch lift, some may require additional modifications such as trimming the fenders or adjusting the bump stops to prevent rubbing during articulation. It’s essential to test fit and drive to ensure proper clearance.
40-Inch Tires
40-inch tires are for serious off-road enthusiasts looking for maximum ground clearance and traction. Fitting 40s on a Wrangler with only a 2.5-inch lift often necessitates extensive modifications, including significant fender trimming, suspension upgrades, and possibly even body lifts. These tires can create substantial rubbing issues, especially during turns and off-road articulation.
Recommended Modifications for Larger Tires
- Fender Trimming: Necessary for larger tires to prevent rubbing against the body during turns and off-road conditions.
- Adjusting Bump Stops: This helps prevent the tires from hitting the fenders or suspension components during compression.
- Wheel Spacers: These can provide additional clearance but may affect handling and stability.
- Upgraded Suspension Components: Consider upgrading shocks and springs to accommodate the added weight and size of larger tires.
Conclusion
Choosing the right tire size after upgrading your Wrangler’s axles is crucial for optimal performance and safety. While a 2.5-inch lift can accommodate 35-inch tires with minimal issues, moving up to 37s or 40s requires careful consideration and potential modifications. Always test fit your tires and consult with professionals if needed to ensure your Jeep is ready for the trails.