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    2. ARB Air Locking Differentials
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    ARB Ford 8.8 Inch 31 Spline Air Locking Differential - RD81

    PROMOTIONS AUTOMATICALLY APPLIED

    Qualifies for Free Shipping

  • Professional Installation Available from $584.80

    • universal fit logo

    Specifications

    • ARB 4x4 Accessories | Part Number: ARBRD81
    • Popular Axle Manufacture:Ford
    • Axle Location:Rear
    • Fitment:Universal Fit
    • Axle Type:Ford 8.8 Inches
    • Availability:In Stock
    • Axle Spline:31 Splines
    • Differential Type:Selectable Locker

    PRODUCT OVERVIEW

    The ARB Air Locker is a pneumatic locking differential that uses air to facilitate the locking of both axles. This action converts your differential from a conventional open to a full spool type axle supplying 100% power to both wheels to keep you going through the worst terrain. ARB onboard air compressor required to activate Air Lockers. Sold Separately.

    We're working on getting more reviews for this product. In the meantime, here's what people are saying about 4WP

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    Question & Answers

    2 Answered questions

    Q: Will this work for a 2004 Ford mustang Mach 1  Answer this question

    A: This is 31 spline mustang probably 28

    Answered by Jeepin it reAl from Yakima Washington on 03/03/2023

    Q: Will the work for the super 8.8 in a 2015 f150? Answer this question

    A: The ARB Ford 8.8 Inch 31 Spline Air Locking Differential -ARBRD81 is correct. 31 splines will fit the Ford 8.8 Inch with 31 Spline shafts on the 2015 F-150

    Answered by Dave from 4WP HQ on 10/05/2021

    Manufacturer

    ARB has been manufacturing 4x4 parts for over 40 years. ARB Air Lockers will amplify the traction of your 4x4 on challenging trails. They give the off-road driver what you need in traction, control and performance. ARB believes in its products so it offers a five year, unlimited mile warranty across the air locker range. ARB 4x4 Accessories includes the suspension system brand Old Man Emu, maker of premium off-road shock absorbers. Old Man Emu premium shocks are developed and tuned specifically for each vehicle application. They come complete with vehicle specific mounting kits for fuss free installation. ARB parts are all developed, engineered and fabricated in-house in Australia. Shop ARB 4x4 Accessories Now

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