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can i use a 4 port iso mod on 05 gmc 2500hd

Discussion in 'Chevy Trucks' started by liftedgmc05, Jan 20, 2012.

  1. liftedgmc05

    liftedgmc05 Junior Member
    Messages: 26

    just wondering if i can use a white lable 4 port isolation module on my 05 gmc 2500hd trying to hook up a 3 plug plow system thanks
  2. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    You can use a four port module... but not a white label. You need a green label, part number 27781.
  3. liftedgmc05

    liftedgmc05 Junior Member
    Messages: 26

    what does the iso module do anyway what does it control??