ARB Air Locker Differential, Dana 44, 30 Spline, 3.92 and Up for Jeep Wrangler, Ford Bronco, Ford F-150, Ford F-250/F-350 Super Duty, Ram 1500 & Ram 2500/3500
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Warranty Information
Vendor warranty summary
ARB Warranty
At a glance: 5 years on Air Locker, 3 years on ARB-branded products, 1 year/25,000 miles on wear items
This is ARB's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: November 4, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| Air Locker (personal use) | 5 years, unlimited miles |
| ARB-branded products (personal use) | 3 years, unlimited miles |
| Wear items: bushes, bearings, shackles, pins, U-bolts, batteries, globes, gas struts | 1 year or 25,000 miles, whichever comes first |
| Air Locker & ARB-branded products (commercial use) | 3 years or 60,000 miles, whichever comes first |
| Wear items (commercial use) | 1 year or 25,000 miles, whichever comes first |
- Keep your NVMOS order confirmation — proof of purchase is required.
What's covered
- Defects in materials and workmanship from the purchase date
- Applies when the product is fitted per ARB's instructions and legal requirements and used for its intended purpose
- ARB chooses whether to repair, replace or refund
What's not covered
- Normal wear and tear
- Incorrect fitting or use beyond what the product was designed for
- Misuse, negligent operation or poor maintenance
- Modified products; accident or vandalism damage
- Competitive events such as racing or rallying
- Use in underground mining or other highly corrosive environments
- Consequential losses; liability capped at the purchase price
How to make a ARB warranty claim
- Contact ARB as soon as you find the defect
- Do not remove the product from the vehicle before contacting ARB
- Submit the online warranty claim form with your purchase receipt
- ARB reviews the claim and decides on repair, replacement or refund
ARB contact: Phone: +1 (619) 940-1769 · Claim page / support
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to ARB, and help it along either way.
Shop ARB at NVMOS
See all ARB products, lead times and FAQs →
Disclaimer: The information on this page describes ARB's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: ARB official warranty information. Last updated on nvmos.com: November 4, 2026. See our return policy for NVMOS's own terms.
About the brand
ARB is the Australian 4x4 company behind the Air Locker, and it builds most of what goes on an overland truck: bumpers, lockers, compressors, roof racks, awnings, fridges, drawers and recovery gear. NVMOS carries the ARB lineup for Toyota, Jeep, Ford, Chevy, GMC, Ram and Nissan trucks and SUVs.
Based in: Melbourne, Australia · Lead time: In-stock items typically ship in 24-48 hours; large items may ship by freight
Shop all 855 ARBWarrantyAll brands
Warranty terms are set by ARB, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
ARB Air Locker Differential, Dana 44, 30 Spline, 3.92 and Up for Jeep Wrangler, Ford Bronco, Ford F-150, Ford F-250/F-350 Super Duty, Ram 1500 & Ram 2500/3500
An ARB Air Locker for Dana 44 axles with 30 splines and 1.31 in. shafts, for ratios of 3.92 and numerically higher. ARB lists it for front and rear Dana 44 applications on Jeep Wrangler, Ford, and Ram trucks of the 1970s to early 2000s.
| Spec | Detail |
|---|---|
| Fitment | Jeep Wrangler 1997-2006; Ford Bronco 1978-1996; Ford F-150 1978-1996; Ford F-250 1978-1990; Ram 1500 1994-2001; Ram 2500 1994-1998 |
| Axle | Dana 44, front and rear |
| Spline count | 30 |
| Shaft diameter | 1.31 in. |
| Ratio | 3.92 and up |
| Part number | RD116 |
| Warranty | 5 years |
Match the axle, spline count and ratio to your vehicle: this unit covers 3.92 and numerically higher ratios on 30 spline Dana 44 axles. Check which axle your truck has, since not every listed model came with a Dana 44 at both ends. An Air Locker needs an air supply, such as an ARB compressor. ARB install instructions: download the PDF. Not sure it fits your build? Call real humans at (920) 249-7744 with your year, trim and setup and we will confirm it.
Which vehicles does it fit?
ARB lists it for the Jeep Wrangler 1997-2006, Ford Bronco and F-150 1978-1996, Ford F-250 1978-1990, and Dodge Ram 1500 1994-2001 and Ram 2500 1994-1998.
Front or rear?
Both. It is specified for Dana 44 axles in either position, so confirm your axle first.
What is the warranty?
ARB covers its own and Old Man Emu products for 3 years with unlimited miles (Air Lockers 5 years); wear items like bushes, shackles, pins and U-bolts are covered for 1 year or 25,000 miles.
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Specifications
ARB Air Locker Differential, Dana 44, 30 Spline, 3.92 and Up for Jeep Wrangler, Ford Bronco, Ford F-150, Ford F-250/F-350 Super Duty, Ram 1500 & Ram 2500/3500 FAQs
Which axle does it fit?
Dana 44 axles with 30 splines, a 1.31 in. shaft and ratios of 3.92 and up.
Is it for the front or rear?
It is listed for both Dana 44 front and rear applications.
Which vehicles is it listed for?
Ford Super Duty 1984-2019, Jeep Wrangler 1988-1991 and 1997-2006, Ford Bronco 1984-1996, Ford F-150 1984-1996, Ram 1500 1994-2004 and Ram 2500/3500 1994-1998.
Are install instructions available?
Yes, manufacturer instructions exist for this Air Locker.
What warranty does it carry?
ARB covers its own and Old Man Emu products for 3 years with unlimited miles (Air Lockers 5 years); wear items like bushes, shackles, pins and U-bolts are covered for 1 year or 25,000 miles.
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