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LR4 ARB Rear Locker is possible!

Discussion in 'LR4' started by djkaosone, Apr 22, 2020.

  1. djkaosone

    djkaosone '11 LR4 HSE LUX 5.0L V8

    Likes Received:
    Oct 26, 2015
    Ok, I've been researching the LR4 ARB Rear Locker for years now. Every time I go down that rabbit hole it's a dead end. I haven't contacted ARB about this yet, but if someone wants to go down this rabbit hole by all means.

    ARB front lockers have been around for a while and are interchangeable with the LR3. The rear lockers were known to fit (a few) and was marketed to fit the LR4 for a brief moment (2013??) and was instantly pulled due to pumpkin size differences from the LR3. ALL of ARB literature and marketing had the LR4 removed.

    Lucky8 LLC, if you haven't heard of them, they specialize in Rovers and is a very reputable reseller of parts too. I just received confirmation that they will fit my 2011 LR4 HSE LUX 5.0L V8. They have this on their site https://lucky8llc.com/collections/lr4-lockers-1.

    I don't have the $$ right now, someone use their stimulus check and do this! I need to live vicariously through them!

    BTW... You're welcome!
    Derek Reid and hickersb like this.
  2. morrisdl

    morrisdl Full Access Member

    Likes Received:
    Jan 1, 2009
    I had heard that there was a rear DIFF revision mid-model year and ARB was getting complaints that the locker would not work in SOME LR4s. ARB could not pin down which LR4s were and which were not compatible, so they pulled the LR4 from the list entirely. The L8 bolt-n-go option gets around that issue.

    I have had mine for 5 years and used it countless times. Front would be nice, but seems like a lot to ask of the CVs. OH, I see L8 has HD CVs now too.
  3. RobRover88

    RobRover88 Full Access Member

    Likes Received:
    Sep 3, 2015
    Melbourne, Australia
    G'day morrisdl......... I'm in Australia & ARB is based in my home city. They insist their rear air-locker
    cannot be fitted to my mid-2014-build D4. I bought it new in December 2014 from dealer stock so I
    couldn't order the factory diff lock (AUD$1065-). The vehicle was loaded with extras but no rear locker.
    I got it for over $12,000- off list price so it was a no-brainer!!
    I've fitted loads of gear -Kaymar rear steel bumper with wheel carrier, Brown Davis 110 liter aux. diesel
    tank, Opposite Lock bull bar with Narva 225 Ultima driving lights, APT rock sliders, air-comp. guard, air-
    tank guard, trans/.transfer case bash plate .......BUT I cannot get ANY KIND OF REAR DIFF LOCK. The
    brilliant Harrop E-Locker is too big for the housing & they won't consider re-engineering it to fit.
    No point in fitting a front ARB locker without a rear diff lock.
    Does anyone know of ANY 2014 D4's with an aftermarket rear diff lock??
    I must admit that I've never really needed a rear locker (yet) to get me out of a predicament. The terrain
    control & wheel travel does the job, especially now I've fitted Compomotive 18" wheels with BFG KO2's.
    Australia is Toyota Landcruiser country (V8 diesels) with most real 4WD'ers driving them, BUT they don't
    drive as well as a D4,or ride as comfortably & are no better off-road unless they're really tricked-up. Plus
    the 'Cruiser drinks lots more diesel than my 3.0lt V6.
    I'm an old guy & intend to keep my D4 as long as I can keep driving. My previous Disco was a 1995 diesel
    & it served me well for 20 years!
    Derek Reid likes this.
  4. Strizzo

    Strizzo Full Access Member

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    Nov 24, 2019
    I wouldn't worry about the CVs as long as you're not going crazy. I was out on the trails yesterday with the factory locker doing two and three wheel climbs with ease. the independent suspension means the truck will lift wheels a lot so LR had to know that the CVs were stout enough to handle climbing on one axle.
    morrisdl likes this.
  5. avslash

    avslash Full Access Member

    Likes Received:
    Nov 22, 2011
    The Lone Star State
    I have lockers at both ends, and I have been lusting after those HD CV joints from L8.

    $5K is a bit of a tough pill to swallow, especially right now, though.
    morrisdl likes this.
  6. ArmyRover

    ArmyRover Full Access Member

    Likes Received:
    Dec 26, 2012
    The HD CV's performed flawlessly for the LR4 on 35's and the RRS on 33's during the Red Clay Rally. Both of those trucks have rear lockers.

    Mine got by on happy thoughts and dreams with the stock 165k mile cv's and 33's. When it got sketchy I just pulled winch line though as to not risk it.
    morrisdl likes this.

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