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Thread: Chevy front axle disconnect wiring??

  1. #1
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    Nov 2008
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    Default Chevy front axle disconnect wiring??

    What is the best way to wire up the new front axle disconnect used on the new electric solinoids? My truck is a 98 Chevy(has newer solinoid) but the chasis wiring harness is from a 2wd(no wiring for front axle disconnect). I know GM made a kit for the older trucks(88-9?). Is there a easy way to make my own harness or should I buy the GM harness. I know its not much money, but what another question is what inputs do I need. Brown wire from T-case(got it), but what about the 2 wires from the old front axle? Is one hot other ground? Something else? Does this make sense?
    Thanks for your help
    94 Chevy C3500HD Rollback with 97 Cummins
    98 GMC Cummins common rail-Allison conversion

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  3. #2
    Registered User
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    Mar 2009
    galt ca
    Thanked 6 Times in 6 Posts


    they require reversing polarity.

    to engauge you will need + to one and - to the other.

    to dis-engauge you will need to reverse that meaning that what was your + is now your -.

    idk how you would wire that up with single switch. mabye a double pole double throw.

  4. #3
    Registered User
    Join Date
    Feb 2010
    Austin, TX
    Thanked 1 Time in 1 Post


    I single pole switch with a 2 pole relay would work too, if a relay is required, I'm not too familiar with these 4x4 setups, but I know about wiring.
    52 Dodge cab on a 79 P30 step van chassis with a 97'll get done, one of these days.

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