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Axle lock - Diff lock

Discussion in 'General Truck Info' started by Ran440, Jun 15, 2008.

  1. Ran440

    Ran440 Member

    I was told by someone on this site that Axle lock refers to the equivalent of lock out hubs and diff lock refers to a locking rear diff.

    I just read this at Gung Ho trucks web site.

    " What is the difference between Axle Lock and Diff Lock?

    Axle lock refers to the rear axle. This feature makes both rear wheels spin at the same time. Diff lock refers to a locking front differential. This feature makes both front wheels spin at the same time. "

    So who is right???
    Last edited: Jun 15, 2008
  2. kepow

    kepow Member

    not gung ho
  3. Ran440

    Ran440 Member

  4. MichTrucks

    MichTrucks Moderator Staff Member

    I can only address a portion of this. I have a 96 Suzuki with Axle Lock. When I am in 2WD and I push the axle lock button; the button lights, the 4WD ligh on the dash comes on and the trucks acts like its in 4WD. No more slipping, just good traction. As my property is flat I can only assume that it is actually only locking the rear and not truly engaging the 4WD.
  5. kepow

    kepow Member

    axle lock only locks in the front hubs it does not lock the axle
    diff lock locks up the rear axle
  6. Timetripper

    Timetripper Moderator

    Your exactly right. This has been talked about more than once here.
    If you use the "Search" button it will bring up all the threads on this topic.
    It seems there was some confusion on this to begin with as some models have their
    buttons labeled in Japanese making there function unclear. As stated by
    kepow the axle lock only engages the front drive train to the transfer case, nothing more - no posi or limited slip up front in these babies.
    As stated by kepow the diff lock locks up the the rear axle only
    it does not affect the front axle which does it's own thing.
    Worst case senerio -when you are stuck you have the diff lock engaged
    driving both rear tires and the open front diff will let the wheel with the
    least amount of traction spin.
    I have run across a 1986 Suzuki Carry that had a rear Limited Slip instead of the Diff Lock.
  7. Ran440

    Ran440 Member

    OK I did a search and learned a little.
    I do have one question though.
    I have seen 4 wheel drive trucks that do not have axle lock. Just a 2X4 4X4 Hi/Lo lever.
    If I understand correctly axle lock is kind of like hub locks. Do those trucks without axle lock have auto hub lock ( axle lock )?
  8. Timetripper

    Timetripper Moderator

    They must have something like that. There is some variation between brands/ model years.
    My 1991 Sambar doesn't have a Hi/Low range and no axle lock button intead it has a
    4wd button on top of the shifter that engages the front drive train. I have not been under the
    front of the truck to see exactly where this occurs but my guess is that it is in the front differential.
    This leaves the front drive shaft rotating at all times and gives the ability to shift on the fly
    into 4wd up to 85kmh [so I'm told].
    I think that the later model trucks just integrated the axle lock function into the 2wd/ 4wd lever.
    Also to note is that earlier models had 4spds with Hi/Low range while later models had 5spds with no Hi/ Low range.
  9. IndianaJason

    IndianaJason Member

    TimeTripper is correct....and there is alot of info here concerning the topic.

    Axle Lock = Front / and does NOT mean "posi-trak", all it does is "lock the hubs" automatically, thus delivering the power from the transfer case /front driveshaft to the wheels.

    Diff Lock = Rear / and does make the rear axle "posi-trak"
  10. MiniBrutes

    MiniBrutes Member

    Suzuki's that do not have "axle lock" actually have manual hubs. (Get out and crank em) Although most trucks have the axle lock, we have had a few without.

    Just a good ol manual lock right on the hub.

    I am no serious off-roader myself, but some people seem to prefer the manual hubs. Less to go wrong? I dunno. I personally wouldnt want to get out of the truck to engage the 4WD, especially in advese conditions.

    But a carry with LSD? you dont happen to have the Chassis number of this truck? I would like to source the LSD.
  11. deshet

    deshet Member

    This post answered some questions regarding axle lock. Does the axle lock light supposed to light up. I can tell I am getting traction when in 4-wheel drive but I don't have a light lit up.

    How do you tell if a carry has a lsd in the rear?

    Limited Slip differential


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