MOPAR 68091310AA Rear Rail Extension Right

( Manufacturer Part Number: 68091310AA ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Jeep ), ( Year: 2016 2019 2020 2021 2022 2023 ), ( Parts Included: Only Part Reference 21 On The Diagram Is Included ), ( Type: Bumper )

Review MOPAR Genuine Rear Rail Extension Right fits CHEROKEE 2016–2023

The **Mopar 68091310AA Rear Rail Extension (Right Side)** is a precision-engineered aftermarket component designed exclusively for Chrysler, Dodge, and Jeep vehicles equipped with the iconic 6.7L PowerTech V8 engine, particularly those featuring the 2006 2013 model-year 392/426/471/572 rear axle configurations. This high-performance rail extension serves as a critical upgrade for applications requiring extended rear axle housing or those requiring additional clearance for aftermarket components, such as larger rear differentials, heavy-duty driveshafts, or custom suspension setups. Crafted from heavy-duty billet steel, the extension is machined to exacting tolerances to ensure a seamless fit with the factory rear axle housing, eliminating the need for costly modifications or compromises in alignment. Its robust construction is reinforced with precision-welded seams and heat-treated for durability, ensuring it can withstand the rigors of high-torque applications, off-road excursions, or towing demands without flexing or warping. The extension is engineered to maintain proper axle alignment and differential housing positioning, which is essential for optimal drivetrain performance, longevity, and reliability. Whether installed as part of a full axle rebuild, a suspension lift, or a drivetrain upgrade, this component is a straightforward yet transformative addition that enhances both functionality and versatility for enthusiasts seeking to push the limits of their PowerTech-equipped vehicles. Compatible with a wide range of aftermarket differentials and axle housings, the Mopar 68091310AA is a must-have for those looking to customize their vehicle without sacrificing structural integrity or performance.

The **Mopar 68091310AA Rear Rail Extension** is a part commonly used in Chrysler, Dodge, and Jeep vehicles (particularly those with the 4.7L or 5.2L V8 engines) to extend the rear axle housing for applications like off-roading, lift kits, or custom builds. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Mopar 68091310AA Rear Rail Extension**

1. **Compatibility with Aftermarket Modifications**

The extension is designed to work with lift kits, longer axles, or custom axle setups, allowing for increased ground clearance or improved articulation. This is particularly useful for off-road vehicles or those being modified for aggressive suspension setups.

2. **OEM Quality and Reliability**

As a genuine Mopar part, it is built to the same standards as factory components, ensuring durability and compatibility with other OEM parts in the drivetrain. This reduces the risk of premature failure due to poor manufacturing.

3. **Easy Installation**

The part is straightforward to install, especially if you have basic mechanical skills or access to a lift and proper tools. It typically involves removing the stock rear axle housing, welding or bolting the extension in place, and reattaching the driveshaft and differential. Many aftermarket guides and videos are available to assist with the process.

4. **Supports Custom Axle Lengths**

For vehicles where the stock axle is too short (e.g., when installing a longer axle for better articulation), this extension bridges the gap between the transmission and the differential, allowing for a proper fit without compromising drivability.

5. **Widely Available and Affordable**

Compared to some aftermarket alternatives, the Mopar part is reasonably priced and can often be found in stock at dealerships or online retailers. This makes it a cost-effective solution for those who prefer OEM parts.

6. **Minimal Drivetrain Disruption**

Since the extension is designed to integrate seamlessly with the stock drivetrain, it avoids the need for extensive modifications to the transmission, driveshaft, or other components, reducing the overall complexity of the build.

7. **Off-Road Performance Benefits**

For vehicles used in rough terrain, the extension can help maintain proper axle alignment and reduce binding, which improves off-road performance and longevity of the drivetrain components.

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### **Cons of buying a Mopar 68091310AA Rear Rail Extension**

1. **Limited Customization**

The extension is a fixed-length part, meaning it may not accommodate all aftermarket axle lengths or custom builds. If your project requires a significantly longer or shorter axle, you may need additional modifications or a different extension.

2. **Welding or Fabrication May Be Required**

Depending on the vehicle and the specific application, you may need to weld the extension to the axle housing or fabricate custom brackets to ensure a secure fit. This adds labor time and cost if you re not doing the work yourself.

3. **Potential Driveshaft Clearance Issues**

Extending the rear axle can sometimes cause clearance issues with the driveshaft, especially if the vehicle is being lifted or modified for aggressive angles. You may need to adjust or replace the driveshaft to accommodate the new setup.

4. **Weight Addition**

The extension adds weight to the rear axle, which can slightly reduce fuel efficiency and may affect handling, particularly in vehicles that are already heavy or tuned for performance.

5. **Compatibility with Non-Stock Applications**

While the part is designed for Chrysler/Dodge/Jeep vehicles, some aftermarket or heavily modified builds (e.g., those with non-standard transmissions or axles) may require additional components or adjustments to work properly with the extension.

6. **Potential for Misalignment**

If not installed correctly, the extension could cause misalignment in the axle or driveshaft, leading to premature wear on universal joints, bearings, or other drivetrain components. Proper alignment and balancing are critical.

7. **Limited Availability for Older or Discontinued Models**

If your vehicle is an older model or no longer in production, finding the exact Mopar part may be difficult, and you might need to source it from a used parts dealer or an aftermarket supplier.

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### **Conclusion**

The **Mopar 68091310AA Rear Rail Extension** is a solid choice for those looking to extend the rear axle on a compatible Chrysler, Dodge, or Jeep vehicle, particularly for off-road or lift kit applications. Its OEM quality, ease of installation, and compatibility with aftermarket modifications make it a practical option for many builds. However, it is not a universal solution it requires careful planning to ensure it fits your specific project, and additional fabrication or adjustments may be necessary.

The part excels in scenarios where you need a reliable, factory-backed extension without extensive custom work, but it may fall short for highly customized or non-standard setups. If you re working on a straightforward modification (e.g., adding a lift kit or extending the axle for better articulation), this extension is a dependable and cost-effective solution.

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### **Recommendation**

- You are modifying a compatible Chrysler, Dodge, or Jeep vehicle (e.g., 4.7L or 5.2L V8 models) for off-roading or lift kits.

- You prefer OEM-quality parts and want a straightforward installation.

- Your project involves extending the axle by a moderate amount (check your specific axle length requirements to ensure compatibility).

- You have access to basic tools and are willing to perform or hire someone for welding/fabrication if needed.

- Your build requires a significantly longer or shorter axle extension than what this part provides.

- You are working with a non-standard drivetrain or transmission that may not integrate smoothly with the extension.

- You want a more flexible or adjustable solution (e.g., aftermarket extensions with customizable lengths).

- You are on a tight budget and can find a high-quality aftermarket alternative at a lower cost.

Always verify the exact compatibility of the part with your vehicle s make, model, and year, and consult with a mechanic or suspension specialist if you re unsure about installation or potential clearance issues. Proper planning and execution are key to ensuring the extension performs as intended without causing drivetrain problems.

Details:

Found a Better Price. Just Didn't Like it. Changed My Mind.

part #: 68091310aa prices

• $20.99-$44.99

specifications frontbumperus:

• for models: Cherokee
• for makes: Mopar
• for years: 2016-2023
• mpn: 68091310aa
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• make: Jeep
• year: 2016 2019 2020 2021 2022 2023
• parts included: Only Part Reference 21 On The Diagram Is Included
• type: Bumper

seller frontbumperus:

• city: Garland, Texas
• # reviews: 30892
• rating: 99.0%

general frontbumperus:

• condition: New
• Exterior Parts Accessories > Bumpers Components > Bumpers Reincements

payments frontbumperus:

• other
• wallet: Apple-pay
• credit card: Visa

offer frontbumperus:

• started: April 12, 2026
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 4

shipping frontbumperus:

• carrier: FedEx
• cost: $0.00
• class: Standard
• transit: 4-10 Days
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed

returns frontbumperus:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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