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Adding factory rear diff lock - 99 LC

Discussion in '100-Series Cruisers' started by uzj100, Jan 21, 2004.

  1. uzj100

    uzj100

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    Hey guys,

    I would like to add a rear factory locker to my 1999 Land Cruiser. I know, I know, I should have bought one with a rear locker.

    I think I have a lead on a complete rear axle, disc brake to disc brake with the elocker.

    Next is the Rear locker ecu, a rear locker switch and a wiring harness. Can be purchased new from Jeff in TX.

    I also need a 1999 Land Cruiser Electrical Wiring Diagram Manual, EWD353U.

    Where is the best place to buy this manual? Does anyone have a used one for sale?

    Thanks,

    Andrew
     
  2. Eduardo96FZJ80

    Eduardo96FZJ80

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    Andrew,
    Have you tried C-Dan? ;)
     
  3. Jim_Chow

    Jim_Chow

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    When I added a rear diff lock to my 1st gen 4runner, I built my own ECU. It consists of two bosch spdt relays and cole-hersee spst and spdt switches (you'd use the factory switch instead). It can be engaged at any speed, any mode (hence, the spst switch to enable/disable the lock/unlock spdt switch...so a passenger doesn't ask, "what does this [lock/unlock] switch do?" while you're going around a bend at 60mph. The rear axle housing took some grinding for the actuator motor notch, welding/grinding to increase the gasket surface area for the new gasket, and drilling/tapping 4 new holes (the others matched). I believe the rear axle mods on the 80 [and probably 100] are easier (only grinding needed) while for the front, you'll have to do the welding/grinding/drilling. If you're swapping in the entire axle unit, it should be cinch!