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Thread: ruby stock locker trouble?

  1. #1
    Time n Money Ghost00TJ's Avatar
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    Angry ruby stock locker trouble?

    Old retired dudes rear locker stays engaged. The locker indicators say it is off.
    All gears and all transfer ranges it is locked.
    We then routed the pumps and air lines all to the engine bay- still locked.
    Took out the axle shafts they were good, took out the locker and cleaned it all up added new dif fluid still the same problem? Didnt see anything broken or out of place, but we are not sure what to look for.
    What are the indicaters that a ruby stock locker is bad?
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  2. #2
    Land Squid Jeffb_79's Avatar
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    Rear locker or front? What size tires are you running?
    The rears tend to go out fairly easy, especially when used with tires larger than 33"

    Have you done the locker bypass mod? If so, it's possible there's a short keeping it locked even when disengaged.

    Are you running the stock diff cover? If so, do you have the fill plug crammed in there as tight as you could get it? There's been issues with that plug going in to far and causing damage.

    Is the locker pump running constantly, even when in 2wd? Pull the air hose and see if the locker doesn't disengage.

  3. #3
    Time n Money Ghost00TJ's Avatar
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    Quote Originally Posted by Jeffb_79 View Post
    Rear locker or front? What size tires are you running?
    The rears tend to go out fairly easy, especially when used with tires larger than 33"
    Rear locker, 32" tires

    Have you done the locker bypass mod? If so, it's possible there's a short keeping it locked even when disengaged.
    no bypass, we rewired the pumps and checked connectors when we moved them, they were doing it before the relocation. Thought maybe there was a bad connection and we could solve it during the move.

    Are you running the stock diff cover? If so, do you have the fill plug crammed in there as tight as you could get it? There's been issues with that plug going in to far and causing damage.

    Is the locker pump running constantly, even when in 2wd? Pull the air hose and see if the locker doesn't disengage.
    yes stock cover. no the pump dosent run constanly,pulled the air line and nothing happened.
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  4. #4
    Ol' Sapper Solar Rubi's Avatar
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    This is probably a stupid thought but I have to go in reverse after I unlock mine to ensure they are unlocked, especially the rear one.
    2.5” Old Man Emu Lift, 35X12X15 Goodyear MTRs, Yukon 5:13 Gears, Nth° Tummy Tucker, Nth° Oil Pan Skid Plate, Nth° Stinger and Rear Diff Skid Plate, Gen Right Mini Boat Rock Rails, Rusty’s Off Road Adjustable Control Arms, Poison Spyder Front Bumper, Rugged Ridge 10.5 Winch, KC Off Road Lights, Tantrum Rock Lights, and more to follow….

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    Junior Member andy02's Avatar
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    I would bet that the fill plug was put on too far as Jeffb said. If the plug is put in to far, it contacts the diaphragm IIRC and won't allow the locker to dis-engage. Sometimes the plug being in to far has caused the locker to have to be replaced. Othertimes, people have gotten lucky with just pulling the fill plug out a little.
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    Time n Money Ghost00TJ's Avatar
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    heres a pic of a ruby locker, the parts with the red and blue dots seem like they should be together. On the locker in question those two are completly seperate. The top one wit blue is very loose and the red dot one moves (as in the pic) up and down but will not move all the way up unless you pull on it.
    are the two pieces supposed to be attached and move as one unit?
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    F'it, aint my Jeep!
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