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2011 Chevy 3500hd firewall hole

Discussion in 'Chevy Trucks' started by dlcs, Oct 11, 2011.

  1. dlcs

    dlcs 2000 Club Member
    Messages: 2,149

    My new truck is suppose to have a hole in the firewall predrilled for the plow harness. Has anyone ever found this hole? I've looked everywhere. I know i can drill one but I want to know where this one is or if it actually exists.
     
  2. Newdude

    Newdude Senior Member
    Messages: 878

  3. dlcs

    dlcs 2000 Club Member
    Messages: 2,149

    I checked the upfitter site and the hole is not where its suppose to be.
     
  4. Schnabel Plowin

    Schnabel Plowin Senior Member
    Messages: 139

    Check with your dealer service center?
     
  5. Cosmic Charlie

    Cosmic Charlie Senior Member
    Messages: 229

    My 2011 2500 HD gas has the hole about 10 inches below the hood seal somewhat under the brake res. ...
     
  6. Deckscapes

    Deckscapes Senior Member
    Messages: 241

    If you look on the firewall from inside the cab, there is a * marking on the firewall liner where you can easily drill a hole thru the firewall without interrupting anything
     
  7. Raconteur

    Raconteur Senior Member
    from MA
    Messages: 138

    The hole has an odd shape rubber grommet in it .
     
  8. topdj

    topdj Senior Member
    Messages: 396

    I found mine its little bit of a pain because the terminal block below it
     
  9. dlcs

    dlcs 2000 Club Member
    Messages: 2,149

    So do you have to drill it out or is it already drilled? I'm going to look again but i cant find one on mine.