If you’re searching for the best ARB air locker kit for Dana 44, you’re likely balancing performance, reliability, and ease of installation. The ARB Selectable Air Locker stands out as the overall top pick for its versatile operation, while the ARB RD116 offers great value for those seeking durability at a lower cost. The RD147 is ideal for Jeep owners needing a tailored fit, but it may lack some of the advanced features of higher-end models. Buyers face tradeoffs between ease of use, strength, and price—continue reading for a detailed breakdown of each option to find your best fit.
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Key Takeaways
- The top-ranked ARB lockers combine durability with ease of control, making them suitable for both daily driving and off-road adventures.
- Different models offer varying spline counts, which directly impact compatibility and strength, especially for high-torque applications.
- Installation complexity varies; some kits are plug-and-play, while others require more extensive setup, influencing overall cost and time.
- Price often correlates with feature set—more advanced lockers provide better durability but at a higher upfront investment.
- Tailored options like the RD147 are ideal for specific vehicle models, but universal kits may offer more flexibility for different Dana 44 applications.
| ARB Selectable Air Locker |  | Best Overall for Versatility and Off-Road Adaptability | Type: Selectable Air Locker | Application: Universal for Dana 44 | Activation: Manual switch | VIEW ON AMAZON | See Our Full Breakdown |
| ARB RD167 Air Locking Differential |  | Best for Heavy-Duty and High-Torque Applications | Application: Dana 60 Full Float, 35 Spline | Gear Range: 4.10 and below | Activation: Air pressure via switch | VIEW ON AMAZON | See Our Full Breakdown |
| ARB RD147 Dana 44 35 Spline 3.73 Down Air Locking Differential for 07-18 Jeep Wrangler JK |  | Best for Jeep Wrangler JK Owners Seeking Full Locking | Application: Jeep Wrangler JK 07-18 | Spline Count: 35 Spline | Gears: 3.73 and down | VIEW ON AMAZON | See Our Full Breakdown |
| ARB RD139 Air Locking Differential | | Best for Durability and All-Terrain Performance | Use With: 30 Spline Axles | Activation: Air pressure switch | Material: Forged gears, two-piece case | VIEW ON AMAZON | See Our Full Breakdown |
| ARB 100/117KIT1 Air Locker Traction Pack |  | Best for Complete Front and Rear Lockers on Jeep JK | Application: Jeep Wrangler JK 2007-2018 | Locker Type: Front Dana 30, Rear Dana 44 | Gear Ratios: 3.73 and higher | VIEW ON AMAZON | See Our Full Breakdown |
| ARB RD116 Air Operated Locking Differential for Dana Spicer Model 44, 3.92 & Up, 30 Spline |  | Best for Maximum Traction in Challenging Terrain | Compatibility: Dana 44 3.92 & Up, 30 Spline | Application: Jeep Wrangler TJ, LJ, XJ, FSJ, CJ7 | Activation Method: Air-operated | VIEW ON AMAZON | See Our Full Breakdown |
| ARB RD117 Air Locking Differential | | Best for Versatile Locking on Jeep Dana 44s | Fitment: Most Jeep Dana 44 with 30 Spline Ratios 3.73 & Down | Application: Jeep JK | Activation: Air Activated | VIEW ON AMAZON | See Our Full Breakdown |
| arb air locker kit for dana 44 | Application | Activation |
|---|---|---|
| ARB Selectable Air Locker | Universal for Dana 44 | Manual switch |
| ARB RD167 Air Locking Differen | Dana 60 Full Float, 35 Spline | Air pressure via switch |
| ARB RD147 Dana 44 35 Spline 3. | Jeep Wrangler JK 07-18 | Dash-mounted switch |
| ARB RD139 Air Locking Differen | Various terrains | Air pressure switch |
| ARB 100/117KIT1 Air Locker Tra | Jeep Wrangler JK 2007-2018 | Air pressure switch |
| ARB RD116 Air Operated Locking | Jeep Wrangler TJ, LJ, XJ, FSJ, CJ7 | — |
| ARB RD117 Air Locking Differen | Jeep JK | Air Activated |
More Details on Our Top Picks
ARB Selectable Air Locker
The ARB Selectable Air Locker stands out because it offers a manual, switchable locking system that can transform your vehicle’s traction capabilities on the fly, making it ideal for those who need both open and locked differential modes. Unlike the ARB RD147 or RD139, which are fully locking and require air activation, this model provides greater control with selectable engagement, offering a significant advantage in mixed terrain conditions. However, it doesn’t provide detailed specifications upfront, and installation demands a certain level of mechanical skill, which might be a barrier for some users. Its main strength is flexibility—perfect for weekend adventurers or those who switch between on-road and off-road driving—and its main drawback is reliance on user installation expertise and limited technical info.
Pros:- Offers selectable locking for on-demand traction control
- Enhances off-road performance with flexible operation
- Allows switching between open and locked modes without permanent modification
Cons:- Requires installation expertise and mechanical knowledge
- Limited detailed product specifications available
Best for: Off-road enthusiasts seeking a versatile locker that can switch modes without permanent locking
Not ideal for: Beginners or those wanting a simple, plug-and-play solution without installation complexity
- Type:Selectable Air Locker
- Application:Universal for Dana 44
- Activation:Manual switch
- Control:Air pressure
- Installation:Requires expertise
Our verdict“This locker suits experienced off-roaders who want adjustable traction and are comfortable with installation complexity.”
ARB RD167 Air Locking Differential
The ARB RD167 Air Locking Differential is designed for those who need full, 100% lockup on challenging terrains, especially with Dana 60 axles. Compared with the RD147, which is specific to Jeep models, the RD167 offers a robust solution for heavier vehicles or those with larger axles. Its main strength is rapid activation via onboard air pressure, converting from open to full spool quickly—ideal for demanding off-road conditions. The tradeoff is that it requires a dedicated onboard air compressor, which is sold separately, adding to the complexity and cost of installation. This system is best suited for experienced off-roaders with larger axles and the ability to handle the added system needs.
Pros:- Provides full locking for maximum traction
- Quick activation with onboard air switch
- Designed for tough, high-torque conditions
Cons:- Requires an onboard air compressor (sold separately)
- Installation can be complex and time-consuming
Best for: Heavy-duty vehicle owners needing full locking on high-torque applications
Not ideal for: Casual off-roaders or those with smaller axles who don’t want complex air systems
- Application:Dana 60 Full Float, 35 Spline
- Gear Range:4.10 and below
- Activation:Air pressure via switch
- Requires:Onboard air compressor
- Construction:Heavy-duty forged gears
Our verdict“This differential suits serious off-roaders with larger axles and the mechanical know-how for installation.”
ARB RD147 Dana 44 35 Spline 3.73 Down Air Locking Differential for 07-18 Jeep Wrangler JK
The ARB RD147 is tailored explicitly for Jeep Wrangler JK models with 35 spline axles and 3.73 gears or lower, providing a simple way to switch from open to fully locked with a dash-mounted switch. Unlike the RD167, which targets larger axles, this model is more suitable for light to moderate off-road use on smaller axles. Its main advantage is ease of activation and compatibility with aftermarket axles, making it a popular choice for Jeep owners wanting reliable locking without extensive modifications. However, it necessitates an external air compressor, which can add complexity for new users, and installation can be challenging for those unfamiliar with Jeep axle setups.
Pros:- Provides full locking for enhanced off-road traction
- Easy activation via dash switch
- Compatible with aftermarket axles and gears
Cons:- Requires an air compressor (sold separately)
- Installation may be complex for beginners
Best for: Jeep JK owners wanting a straightforward, full-locking differential for serious off-road use
Not ideal for: Drivers with non-Jeep vehicles or those seeking a more versatile, switchable system
- Application:Jeep Wrangler JK 07-18
- Spline Count:35 Spline
- Gears:3.73 and down
- Activation:Dash-mounted switch
- Requires:Air compressor
Our verdict“This differential is ideal for Jeep JK owners seeking a dedicated, full-locking setup for rugged terrain.”
ARB RD139 Air Locking Differential
The ARB RD139 is designed for durability, offering a robust solution for locking differentials in a variety of terrains like rock, gravel, snow, and mud. Its forged gears and two-piece case construction contribute to long-term strength, making it a good competitor to the RD167 for those who prioritize rugged build quality. The main advantage is its 5-year warranty, reflecting confidence in its longevity. However, similar to other air lockers, it requires an external air compressor, which adds to the installation complexity. While it excels in durability, it’s best suited for users who already have or are willing to invest in a full air system setup.
Pros:- Durable forged gear construction
- Suitable for multiple terrains, including snow and mud
- Industry-leading 5-year warranty
Cons:- Requires separate air compressor
- Installation may be complex for some users
Best for: Experienced off-roaders needing a durable, versatile locking differential for various terrains
Not ideal for: Casual drivers or those unwilling to handle additional air system components
- Use With:30 Spline Axles
- Activation:Air pressure switch
- Material:Forged gears, two-piece case
- Warranty:5 years
- Application:Various terrains
Our verdict“This locker suits those seeking a tough, long-lasting differential with proven durability for demanding conditions.”
ARB 100/117KIT1 Air Locker Traction Pack
The ARB 100/117KIT1 offers a comprehensive solution with front and rear lockers tailored for Jeep JK models, providing a balanced upgrade for serious off-road performance. Unlike single-differential lockers like the RD147, this kit includes both front (Dana 30) and rear (Dana 44) air lockers, giving full traction control in challenging conditions. The main benefit is the convenience of a full package that covers both axles, simplifying installation for dedicated Jeep owners. The main drawback is its restriction to specific Jeep models and reliance on a complex air system, which might require ongoing maintenance. This pick is ideal for Jeep owners looking to maximize traction without piecemeal upgrades.
Pros:- Provides front and rear lockers for maximum traction
- Includes all necessary components for installation
- Compatible with higher gear ratios (3.73 and above)
Cons:- Limited to specific Jeep JK models
- Relies on air system requiring maintenance
Best for: Jeep JK owners wanting a complete front and rear locker upgrade for extreme off-road use
Not ideal for: Owners of other vehicle types or those seeking a simpler, single-differential solution
- Application:Jeep Wrangler JK 2007-2018
- Locker Type:Front Dana 30, Rear Dana 44
- Gear Ratios:3.73 and higher
- Activation:Air pressure switch
- Includes:Front and rear lockers
Our verdict“This kit is designed for Jeep JK owners who want full front and rear lockers for intense off-road adventures.”
ARB RD116 Air Operated Locking Differential for Dana Spicer Model 44, 3.92 & Up, 30 Spline
The ARB RD116 stands out for transforming a Dana 44 into a full spool-like setup, providing unparalleled traction in tough off-road conditions. Compared with the RD117, which is more suited for Jeep JKs with lower ratios, the RD116 offers a broader compatibility for larger axles and higher ratios, making it ideal for serious off-road builds. The air activation switch makes engagement simple once the necessary compressor is installed, but installation can be complex for DIYers unfamiliar with pneumatic systems. The need for a separate air compressor adds to the overall cost and setup effort, which might be a barrier for some. This differential is best suited for those who prioritize maximum traction and are comfortable with more involved installation, especially in custom or heavy-duty applications.
Pros:- Provides 100% power to both wheels for superior off-road grip
- Easy activation via dash-mounted switch once installed
- Converts open differential to full spool for maximum traction
- Compatible with Dana 44 axles 3.92 and up, 30 spline
Cons:- Requires an air compressor, which is sold separately
- Installation may be challenging for users unfamiliar with pneumatic systems
- No manual override or mechanical activation option
Best for: Off-road enthusiasts seeking maximum traction and willing to handle complex installation, especially those with compatible air systems already in place
Not ideal for: Casual drivers or those new to air locker setups who prefer plug-and-play solutions or minimal installation complexity
- Compatibility:Dana 44 3.92 & Up, 30 Spline
- Application:Jeep Wrangler TJ, LJ, XJ, FSJ, CJ7
- Activation Method:Air-operated
- Requires:Air compressor (sold separately)
Our verdict“This pick is ideal for experienced off-roaders who need maximum traction and are comfortable with a more involved setup process.”
ARB RD117 Air Locking Differential
The ARB RD117 offers a flexible solution for Jeep owners with Dana 44 axles, especially those with ratios 3.73 and below, including JK models. Unlike the RD116, which is geared toward higher ratios and larger axles, the RD117 provides a selectable locking feature that allows switching between open and fully locked modes, making it more adaptable for different driving conditions. The quick air activation means engagement is fast once the compressor is running, but installing the system and compressor can be complex, especially for those unfamiliar with air systems. This differential suits those who want a more versatile locker that can be turned on or off as needed, but it requires the purchase of an air compressor separately, adding to overall cost and complexity.
Pros:- Allows conversion from open to fully locked or spool mode
- Air activation provides quick, reliable engagement
- Compatible with Jeep Dana 44 axles and Jeep JK models
- Selectable locking offers flexibility for different terrains
Cons:- Requires the purchase of an air compressor separately
- Installation can be complex, especially for novice users
- Air system maintenance adds additional steps and cost
Best for: Jeep owners seeking a versatile, easily switchable locker for both on-road and off-road use, particularly those with Dana 44 axles and 3.73 ratios or lower
Not ideal for: Casual off-roaders or beginners who prefer simple manual lockers or less complex installation, as it demands pneumatic setup and maintenance
- Fitment:Most Jeep Dana 44 with 30 Spline Ratios 3.73 & Down
- Application:Jeep JK
- Activation:Air Activated
- Type:Selectable Lock
Our verdict“This differential is well-suited for Jeep owners who want a lock that can be toggled on demand, accepting the added installation complexity.”
How We Picked
These products were evaluated based on several key criteria: build quality, ease of installation, compatibility with Dana 44 axles, strength and durability under demanding conditions, and overall value for the price. We prioritized models that are widely trusted in off-road communities and verified for compatibility with common Dana 44 configurations. Our ranking reflects a balance between performance features and practical considerations like maintenance requirements and user feedback on real-world reliability. This approach ensures the selected options serve a range of needs, from casual off-roaders to serious enthusiasts seeking maximum durability.| arb air locker kit for dana 44 | Activation |
|---|---|
| ARB Selectable Air Locker | Manual switch |
| ARB RD167 Air Locking Differen | Air pressure via switch |
| ARB RD147 Dana 44 35 Spline 3. | Dash-mounted switch |
| ARB RD139 Air Locking Differen | Air pressure switch |
| ARB 100/117KIT1 Air Locker Tra | Air pressure switch |
| ARB RD116 Air Operated Locking | — |
| ARB RD117 Air Locking Differen | Air Activated |
Factors to Consider When Choosing Arb Air Locker Kit For Dana 44
Choosing the right ARB air locker kit for Dana 44 requires understanding several important factors. Beyond just fitting your vehicle, the right locker should match your driving style, durability needs, and budget. Considering these factors carefully will help avoid costly mistakes and ensure your off-road experience is both reliable and enjoyable.Compatibility and Spline Count
Ensuring the locker matches your Dana 44 axle’s spline count is critical for proper fitment and strength. Most Dana 44 axles use 30 or 35 splines, and selecting a locker with the correct spline count prevents installation issues and reduces the risk of failure. Universal kits may offer flexibility, but tailored models like the RD147 are designed specifically for certain vehicles, simplifying installation and maximizing reliability.
Ease of Installation and Maintenance
Some ARB lockers are designed for straightforward installation, often requiring minimal disassembly or specialized tools. Others might need more extensive work or professional help, increasing upfront costs. Additionally, consider how easy it is to service or repair the locker over time—models with accessible components tend to save time and money in the long run.
Durability and Performance
Durability depends on the locker’s construction quality and the materials used. Heavy-duty models like the RD116 are built for high-torque applications and rough terrains, making them ideal for aggressive off-road use. Cheaper options might suffice for light trail use but could wear out faster under stress, leading to more frequent replacements.
Price and Value
While higher-priced lockers generally offer better durability and advanced features, they also require a larger initial investment. Evaluate your needs carefully—if you only occasional off-road, a more affordable model might be sufficient. For frequent or aggressive off-road use, investing in a premium locker can pay off with longer lifespan and better performance.
Application and Vehicle Specifics
Some lockers are designed specifically for Jeep Wranglers or certain truck models, offering a perfect fit and optimized performance. Universal kits might require modifications but provide flexibility across different Dana 44 axles. Always verify your vehicle’s specifications before purchase to avoid compatibility issues and ensure optimal operation.
Frequently Asked Questions
Can I install an ARB air locker myself, or do I need a professional?
Depending on your mechanical skill level, installing an ARB air locker can be a manageable project or may require professional help. Many kits come with detailed instructions and are designed for DIY installation, but the process involves axle disassembly and precise adjustments. If you’re comfortable with mechanical work and have the right tools, installation is feasible. Otherwise, hiring a professional ensures correct setup and reduces the risk of errors that could compromise safety and performance.
How does an ARB air locker differ from a traditional mechanical locker?
ARB air lockers use compressed air to engage and disengage, offering the advantage of selectable operation—you can activate the locker only when needed. Traditional mechanical lockers are always engaged once installed, which can lead to increased tire wear and handling issues on pavement. Air lockers provide greater control, making them preferable for vehicles used both on-road and off-road, but they require an air compressor and more maintenance. This tradeoff means considering your driving environment is essential when choosing between the two types.
What spline count should I look for in a Dana 44 locker for high-torque applications?
For high-torque use, especially in off-road or heavy-duty vehicles, a locker with 35 splines offers greater strength and durability compared to 30-spline options. The increased spline count distributes stress more evenly, reducing the risk of failure under demanding conditions. Always verify your axle’s spline count before purchase to ensure compatibility and avoid costly modifications later.
Are ARB air lockers suitable for daily driving, or are they only for off-road use?
While ARB air lockers are primarily designed for off-road performance, they can be used for daily driving if installed with a control system that allows easy engagement and disengagement. However, some models may cause increased tire wear or handling issues when engaged on pavement. For regular on-road use, selecting a locker with a smooth engagement mechanism and considering the vehicle’s overall setup will help maintain drivability without sacrificing off-road capability.
What maintenance is required for an ARB air locker installed in Dana 44?
Maintaining an ARB air locker involves regularly checking the air compressor, hoses, and fittings for leaks or damage. It’s also advisable to inspect the locker’s internal components periodically for wear or debris buildup. Proper lubrication and ensuring the air system functions correctly will prolong the locker’s lifespan and ensure consistent operation. Routine maintenance is straightforward but essential for reliable performance, especially if you frequently switch between on-road and off-road use.
Conclusion
For most everyday drivers and off-road enthusiasts seeking a reliable and versatile solution, the ARB Selectable Air Locker offers the best balance of performance, control, and ease of use. Those on a tighter budget or new to lockers might find the RD116 to be a strong value choice, providing excellent durability without excessive cost. If you’re a serious off-roader or require maximum strength, investing in a premium model like the RD147 ensures long-term reliability. Beginners should prioritize models with straightforward installation and clear controls, while experienced users can opt for more advanced, high-torque options. Consider your vehicle, driving style, and budget carefully to select the best ARB air locker kit for Dana 44 in 2026.
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