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FSD26 IS LIVE: Every $1 spent = 150 entries to win a 2024 F-350 Limited + $20,000 cash.
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ARB

ARB Airlocker Dana44 30Spl 3.73&Dn S/N.

4.7 store rating · 566 reviews
SKU: ARBRD117

Fits 1969–1974 Chevrolet Blazer, 1975–1980 Chevrolet K10 / K20 / K5 Blazer and more

All 296 applications
$1,300.99
Only 7 left. Ships in 1–2 business days.
195000 Entries150X
This purchase enters you to win FSD26, a 2024 F-350 Limited and $20,000 cash. See the truck · No purchase necessary
  • Authorized dealerGenuine ARB parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
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The world's premier traction aid, an ARB Air Locker(TM) keep you moving in all conditions. With the flick of the switch an Air Locker gives instant lock at any moment and its super strong design allows activation at any speed allowing you to tackle the toughest terrain. The advantage of the Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the internal differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates like a conventional open differential. An Air Locker equipped vehicle can be driven in a slower, safer and more controlled manner, greatly reducing the likelihood of vehicle damage and environmental impact.

Product Specifications Sheet
Installation Instructions
Warranty
Installation Instructions
  • Easy, convenient operation allows the user to concentrate on the terrain without leaving the comfort and safety of the driver's seat
  • Steel reinforced, elastomer bonded annular seal designed to handle the most extreme climatic temperatures on Earth
  • Two-piece design is ultra-durable and extremely strong ? minimal moving parts ensure maximum reliability
  • Kit includes: Air Locker differential, activation switch, solenoid valve, air line and bulkhead fitting
  • Provides 100 percent traction on demand without affecting on-road drivability or driveline wear
  • Patented ?timed' locking mechanism offers high strength and ultra-fast unlocking
  • Employs Minimal Moving Parts Ensuring Maximum Reliability
  • Air compressor required for operation (sold separately)

Reviews

What customers say

Verified reviews collected by Loox from real orders.

Good to know

Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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Why buy here

A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

The shop floor
The shop floor
In-house fabrication
In-house fabrication
Engine work
Engine work

Authorized dealer for 140+ brands

All brands
  • 7+ Years in business
  • 6+ Shop technicians
  • 30,000+ In-stock SKUs
  • 25+ Trucks given away
FSD shop interior - trucks on lifts The shop floor, Nazareth, PA

Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

Call 908-223-9744 Text us Email

Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

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