Jeep CJ Dana 44 Rear Axle For Sale: Your Ultimate Guide to a Legendary Upgrade

Jeep CJ Dana 44 Rear Axle For Sale: Your Ultimate Guide to a Legendary Upgrade jeeps.truckstrend.com

The Jeep CJ series, a quintessential icon of American off-roading, is renowned for its rugged simplicity and unparalleled capability. For many CJ owners, the journey of customization and performance enhancement inevitably leads to one critical component: the rear axle. Among the pantheon of available upgrades, the Jeep CJ Dana 44 Rear Axle stands out as a legendary and highly sought-after component. This article serves as your comprehensive guide to understanding, sourcing, and successfully acquiring a Dana 44 rear axle for your beloved CJ, transforming its off-road prowess and ensuring years of reliable adventure.

The Enduring Appeal of the Jeep CJ Dana 44 Rear Axle

Jeep CJ Dana 44 Rear Axle For Sale: Your Ultimate Guide to a Legendary Upgrade

At its core, the Dana 44 is a robust and highly capable axle assembly manufactured by Dana Corporation. For Jeep CJ owners, particularly those looking to push their vehicles beyond mild trails, the factory-equipped Dana 35 (or even earlier Dana 30s) often proves to be the weakest link. The Dana 44, with its larger ring gear, stronger axle shafts, and more robust housing, offers a significant leap in durability and load-bearing capacity. It’s the go-to upgrade for anyone planning to run larger tires, install lower gearing for enhanced crawling, or simply demand more from their drivetrain without fear of breakage.

Finding a "Jeep CJ Dana 44 Rear Axle For Sale" isn’t just about replacing a worn-out part; it’s about investing in your vehicle’s future performance, reliability, and overall off-road potential. Whether you’re building a dedicated rock crawler, an overland expedition vehicle, or simply want peace of mind on the trails, a Dana 44 is often considered an essential foundation.

Understanding the Jeep CJ Dana 44 Rear Axle

The Dana 44 has a long and storied history, appearing in various forms across numerous vehicle manufacturers. For CJ Jeeps, it was often an optional upgrade from the factory, particularly in later CJ-7 and CJ-8 Scrambler models. Key characteristics that make it desirable include:

• Ring Gear Diameter: A primary indicator of strength, the Dana 44 typically features an 8.5-inch ring gear, significantly larger than the Dana 35’s 7.625-inch gear.
• Axle Shafts: Most CJ Dana 44s utilize 30-spline axle shafts, which are considerably stronger than the 27-spline shafts found in Dana 35s. Early CJ Dana 44s (pre-1971) may have 2-piece axle shafts, while later models and aftermarket upgrades feature more desirable 1-piece shafts.
• Housing Robustness: The axle tubes and differential housing of a Dana 44 are thicker and more resilient to bending and impact damage compared to lighter-duty axles.



• Aftermarket Support: Due to its popularity, the Dana 44 boasts an enormous aftermarket ecosystem, offering a wide array of lockers, limited-slip differentials, stronger chromoly axle shafts, and various gearing options.

Narrow Track vs. Wide Track: Knowing Your CJ’s Needs

A crucial distinction when searching for a CJ Dana 44 is its width. CJ Jeeps came in two primary rear axle widths:

• Narrow Track: Found in CJ-5s and early CJ-7s, typically around 50-51 inches wide from wheel mounting surface (WMS) to WMS.
• Wide Track: Found in later CJ-7s (1982-1986) and all CJ-8 Scramblers, measuring approximately 56 inches WMS to WMS.

It is paramount to know which width your CJ requires, as installing the wrong width can lead to tire clearance issues, handling problems, and an overall aesthetically displeasing stance. Visually, wide-track axles will appear to stick out further from the body, especially noticeable when viewing the vehicle from the front or rear.

Benefits of Upgrading to a Dana 44

The decision to seek out a "Jeep CJ Dana 44 Rear Axle For Sale" is driven by several compelling advantages:

1. Enhanced Durability and Strength: This is the primary reason. A Dana 44 can reliably handle larger tires (33-35 inches and even some 37s with proper setup), more powerful engines, and the stresses of aggressive off-road driving that would quickly destroy a stock Dana 35.
2. Increased Reliability: Fewer trail breakages mean more time enjoying the outdoors and less time on the side of the trail waiting for a tow.
3. Wider Gearing Options: The Dana 44’s robust design allows for a broader range of gear ratios (e.g., 4.10, 4.56, 4.88, 5.13), enabling CJ owners to precisely match their gearing to tire size, engine power band, and intended use (crawling vs. highway driving).
4. Superior Traction Device Compatibility: The aftermarket is flooded with lockers (e.g., ARB Air Locker, Detroit Locker) and limited-slip differentials specifically designed for the Dana 44, providing significantly improved traction in challenging terrain.
5. Improved Resale Value: A CJ equipped with a Dana 44 axle is generally more desirable and commands a higher resale value, signaling to potential buyers that the vehicle has been thoughtfully upgraded for serious use.

Key Considerations When Buying a Used CJ Dana 44 Rear Axle

When you find a "Jeep CJ Dana 44 Rear Axle For Sale," a thorough inspection and careful consideration are vital. Unlike buying a new part, used axles come with their own set of variables:

• Overall Condition: Inspect for rust, pitting, and especially bent axle tubes. A bent tube is a major red flag and often means the axle is scrap unless you’re prepared for significant repair. Check the condition of the spring perches and shock mounts.
• Gearing: Ask about the installed gear ratio. If the seller doesn’t know, be prepared to open the differential cover to verify. Ensure the ratio matches your needs and, critically, matches the gearing in your front axle (if you plan to use 4WD).
• Differential Type: Is it an open differential, a limited-slip, or a full locker? Test its functionality if possible. An open diff is fine, but a non-functional locker adds to your rebuild cost.
• Axle Shafts: Confirm if they are the stronger 1-piece design. If they are 2-piece (common on very early CJ Dana 44s), factor in the cost of upgrading to 1-piece shafts, which is highly recommended for strength. Check for any twisting or scoring.
• Brakes: What kind of brakes are included? Drum or disc? Assess their condition. Many used Dana 44s will come with drum brakes, which can be easily converted to disc brakes with aftermarket kits.
• Flange Type/Bolt Pattern: Ensure it’s the standard CJ 5×5.5" bolt pattern.
• Bearing Surfaces: Check for any scoring or pitting where the wheel bearings ride on the axle shafts.
• Price vs. Value: A cheap axle might be cheap for a reason. Factor in the potential cost of a full rebuild (bearings, seals, possibly gears, and shafts) into your budget.

Where to Find a Jeep CJ Dana 44 Rear Axle For Sale

Locating the right Dana 44 can be a hunt, but several avenues offer promising leads:

• Online Marketplaces: Craigslist, Facebook Marketplace, and eBay are common platforms. Use specific search terms like "CJ Dana 44," "Jeep CJ axle," or "Dana 44 rear axle."
• Jeep Forums & Off-Road Classifieds: Dedicated Jeep forums (e.g., JeepForum.com, Pirate4x4.com) often have classified sections where enthusiasts sell parts.
• Salvage Yards/Auto Recyclers: Specialty 4×4 salvage yards are excellent resources. Call ahead and ask specifically for CJ Dana 44s, specifying narrow or wide track.
• Specialty Jeep Parts Dealers: Companies that specialize in used or rebuilt Jeep parts often have these axles in stock, though usually at a higher price due to inspection and potential refurbishment.
• Swap Meets & Off-Road Events: Attending local and regional off-road swap meets can yield hidden gems and allow for in-person inspection.

The Buying Process: Tips for a Successful Purchase

1. Do Your Homework: Before contacting sellers, know exactly what width and features you need for your CJ.
2. Ask Detailed Questions: Inquire about the axle’s history, the vehicle it came from, its mileage, and why it’s being sold.
3. Inspect Thoroughly (in person if possible): Bring a flashlight, a measuring tape, and even a straight edge. Look for rust, damage, and straightness. If the seller allows, remove the differential cover to inspect the gears and carrier.
4. Verify Gearing: Count the teeth on the ring and pinion gears (e.g., 41 teeth on the ring, 10 on the pinion = 4.10 ratio).
5. Negotiate: Be prepared to negotiate the price based on your assessment of its condition and the necessary work.
6. Budget for the Unknown: Assume you’ll need to replace bearings and seals at a minimum. Factor in potential gear changes, locker installation, or brake upgrades.

Installation and Related Upgrades

Once you’ve secured your Dana 44, installation is the next step. While a mechanically inclined individual can perform the swap, professional installation is recommended if you’re not comfortable with drivetrain work, especially if new gearing is involved.

• Basic Installation: Remove the old axle, position the new Dana 44, connect driveshaft, brake lines, and U-bolts.
• Driveshaft Length: You may need to adjust your driveshaft length, especially if changing axle widths or lift heights.
• Brake Lines: Ensure your existing brake lines connect properly or plan to replace them.
• Rebuild Before Install: It’s highly advisable to rebuild the axle with new bearings and seals before installation. This is also the ideal time to install new gears or a locker.
• Disc Brake Conversion: Many owners opt to convert to disc brakes on the rear Dana 44 for improved stopping power.

Practical Advice and Actionable Insights

• Condition over Price: A seemingly "great deal" on a bent or severely rusted axle will cost you far more in the long run than a slightly more expensive, well-maintained unit.
• Know Your Ratio: Decide on your ideal gear ratio before you start looking. This will narrow your search and save you money on re-gearing later.
• Consider a "Take-Out": Sometimes, people upgrade their CJ Dana 44s to even stronger axles (like a Dana 60). These "take-outs" can be excellent values, often coming with upgraded shafts and lockers already installed.
• Don’t Rush: The right Dana 44 might not appear overnight. Be patient, do your research, and be prepared to act quickly when the right one surfaces.
• Shipping Costs: If buying from a distance, freight shipping for an axle can be substantial. Factor this into your total cost.

Estimated Price Guide: Jeep CJ Dana 44 Rear Axle For Sale

Prices for used Dana 44 axles can vary significantly based on condition, included components (gears, locker, shafts, brakes), and location. This table provides a general estimate for various scenarios.

Component/Condition	Description	Estimated Price Range (USD)	Notes
Bare Housing (Used)	Just the Dana 44 housing, no internals, shafts, or brakes. Requires full build.	$200 – $500	Best for custom builds; verify straightness. Local pickup preferred due to shipping cost for just a housing.
Complete Axle (Used, Basic)	Includes housing, stock 30-spline shafts, open differential, drum brakes. Good core for rebuild.	$600 – $1,200	Condition varies wildly; check for rust, bent tubes, and verify gearing. Most common type found.
Complete Axle (Used, Upgraded)	Includes housing, upgraded shafts (e.g., chromoly), locker/LSD, disc brakes.	$1,500 – $2,500+	Premium used condition; verify locker function and shaft integrity. A rare find at a good price.
Professionally Rebuilt/Refurbished	Fully rebuilt with new bearings, seals, gears (your choice), possibly new shafts, disc brake conversion.	$2,500 – $4,000+	"Bolt-in" ready; often comes with a warranty from a reputable builder. Price depends heavily on customization.
New Aftermarket Housing	Brand new Dana 44 style housing (e.g., Currie, Dynatrac). Requires all new internals.	$1,000 – $2,000	For ultimate strength and custom builds. Ideal if you want specific width or mounting points.

Frequently Asked Questions (FAQ) about Jeep CJ Dana 44 Rear Axle For Sale

Q1: Can I put a Dana 44 from a different vehicle (e.g., Ford F-150, Wagoneer) into my CJ?
A1: While physically possible, it’s not a direct bolt-in. You’ll need to modify spring perches, shock mounts, and potentially the steering linkage, brake lines, and driveshaft. A CJ-specific Dana 44 is always the easiest route.

Q2: How do I know if the Dana 44 is a narrow track or wide track?
A2: Measure the wheel mounting surface (WMS) to WMS. Narrow track is typically 50-51 inches, wide track is around 56 inches. Visually, wide-track axles will have a noticeable difference in tire protrusion if comparing to a narrow-track CJ.

Q3: What gear ratio should I look for?
A3: This depends on your tire size, engine, and transmission. Generally, larger tires (33"+) require lower gearing (e.g., 4.10, 4.56, 4.88) for optimal performance. Use online gear ratio calculators to determine the best fit for your setup. Always match your front axle ratio!

Q4: Is it worth buying a Dana 44 with a bad locker?
A4: It depends on the price. If the axle is otherwise in excellent condition and the price reflects the need for a new locker, it can be a good deal. However, replacing a locker is an additional cost and requires specialized knowledge.

Q5: What’s the difference between 2-piece and 1-piece axle shafts?
A5: Early CJ Dana 44s (pre-1971) used 2-piece shafts, where the outer flange bolts to the inner shaft. These are weaker and more prone to failure. Later models and aftermarket upgrades use stronger 1-piece shafts, where the shaft and flange are a single unit. Always opt for 1-piece if possible.

Q6: Do I need a professional to install it?
A6: If you are not experienced with vehicle suspension, drivetrain, and brake systems, professional installation is recommended. Incorrect installation can lead to safety hazards and further damage.

Q7: What’s the average lifespan of a Dana 44?
A7: With proper maintenance (regular fluid changes, checking for leaks), a Dana 44 can last for hundreds of thousands of miles. Its lifespan in off-road use heavily depends on driving style, tire size, and the abuse it endures.

Conclusion

The pursuit of a Jeep CJ Dana 44 Rear Axle For Sale is a worthy endeavor for any CJ owner serious about enhancing their vehicle’s capabilities. This robust axle provides the necessary strength and versatility to tackle more aggressive trails, accommodate larger tires, and deliver reliable performance for years to come. By understanding the different types, knowing what to look for during inspection, and being strategic in your search, you can confidently acquire this legendary upgrade. While the initial investment and effort may seem significant, the peace of mind and enhanced off-road prowess a Dana 44 brings to your Jeep CJ are truly invaluable, opening up a world of new adventures. Happy hunting, and may your trails be ever challenging and your axle ever strong!