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2003 379 backup light switch replacement/18 speed Eaton

Discussion in 'Peterbilt Forum' started by Nevs, Jun 23, 2013.

  1. Jun 23, 2013 #1
    Nevs

    Nevs Light Load Member

    295
    107
    Dec 25, 2010
    flyover country (Iowa)
    0
    As the title says, what is the best way to get to the switch? I can see it, and I'm guessing I need to remove the shifter cover to get to it from the cab, but given that none of the screws want to come out easily, I wondered if there was another way. Any and all thoughts are appreciated.
     
    Nevs, Jun 23, 2013
    Nevs, Jun 23, 2013
    #1
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  3. Jun 23, 2013 #2
    boneebone

    boneebone Road Train Member

    2,297
    2,371
    Mar 13, 2009
    0
    On my Eaton Fuller 13 Speed, which is the same as a 18 Speed externally, I crawled under the truck and accessed the Back-up Light Switch that way, you should just be able disconnect the Wiring Harness and unscrew the Switch from the top of the Transmission Housing.
     
    Last edited: Jun 23, 2013
    boneebone, Jun 23, 2013
    boneebone, Jun 23, 2013
    #2
    Nevs Thanks this.
  4. Jun 23, 2013 #3
    truckmechanic

    truckmechanic Medium Load Member

    534
    140
    Jan 14, 2012
    Hi Desert Ca
    0
    Yup crawl under the truck and reach up around the right side of the back of the trans you will have to go by feel pia sometimes
     
    truckmechanic, Jun 23, 2013
    truckmechanic, Jun 23, 2013
    #3
    Nevs Thanks this.
  5. Jun 23, 2013 #4
    oilfieldtrash

    oilfieldtrash Light Load Member

    226
    107
    Oct 17, 2009
    Jones,Oklahoma
    0
    I changed mine 2 weeks ago through the shifter boot hole. PIA but I got it done.
     
    oilfieldtrash, Jun 23, 2013
    oilfieldtrash, Jun 23, 2013
    #4
    Nevs Thanks this.
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