Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Flat 5 wiring harness

Discussion in 'Tow & Trailer' started by dhcomp, Nov 19, 2006.

  1. dhcomp

    dhcomp 3/4 ton status Premium Member

    Joined:
    Mar 17, 2001
    Posts:
    9,862
    Likes Received:
    296
    Location:
    Truckee, CA
    Is anyone making a flat five wiring harness? THe burb i just bought has a round plug on it (which i personally hate), and only tow boat trailers that have flat 4 /5 connectors on them. I can buy a flat 5 plug and wire it myself, but does anyone make a harness? If not, i'll probably just get the uhaul one again ( i like their bracket/cap).

    FYI, flat 5's are often used for surge brakes with electronic reverse lockout solenoids hooked up to the brake lights.
     
  2. 88sub4x4

    88sub4x4 1/2 ton status

    Joined:
    Sep 22, 2002
    Posts:
    792
    Likes Received:
    0
    Location:
    Long Island, NY
  3. dhcomp

    dhcomp 3/4 ton status Premium Member

    Joined:
    Mar 17, 2001
    Posts:
    9,862
    Likes Received:
    296
    Location:
    Truckee, CA
    Thanks for the reply. I've seen plent of adapters on the market now, but i want to add a new trailer wiring harness to teh truck, and need 5 flat, so why wire up something i don't need jsut to use an adapter. If im going to do a new harness, i want to do one that ends in teh type of plug im going to use.
     
  4. 88sub4x4

    88sub4x4 1/2 ton status

    Joined:
    Sep 22, 2002
    Posts:
    792
    Likes Received:
    0
    Location:
    Long Island, NY
    OK, thought you were looking for an adapter harness, sorry. I like to have the 7 way RV, then just adapt after that cause i tow about 6-7 different trailers. If your just towing 1, then there is no reason for it.
     
  5. dhcomp

    dhcomp 3/4 ton status Premium Member

    Joined:
    Mar 17, 2001
    Posts:
    9,862
    Likes Received:
    296
    Location:
    Truckee, CA
    Problem is, its not a flat 7 way on there. I think its the flat 6? Its not he plastic round one like is on the new trucks, its a smaller one, about 1.125 in diameter. Anyways, all the trailers ive ever towed are flat 4 or 5 (all boats). So that is the way i want to go. I think i'll just use the flat 4 until i can get a 5way harness off a new boat somewhere for free. THen i'll just add it. THanks!
     
  6. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

    Joined:
    Jul 19, 2006
    Posts:
    3,907
    Likes Received:
    0
    Location:
    west chester, Pa
    The round 7 is here to stay. there really isn't any more wire you can add. If you take the 7 wire off the truck and then buy a newer trailer you will have to go through this again. it would be easier to update your trailers and grab some adapters for anything else.
     
  7. dhcomp

    dhcomp 3/4 ton status Premium Member

    Joined:
    Mar 17, 2001
    Posts:
    9,862
    Likes Received:
    296
    Location:
    Truckee, CA
    I don't have a 7 wire though, i have the old metal round one. 6 wire i think.

    Either way, i got a flat 4 wired up for now, along with the 6 way. I move so many different boat trailers, that i'd always need an adapter....and thats just one more thign to have to deal with.
     
  8. fixmy59bug

    fixmy59bug Registered Member

    Joined:
    Feb 28, 2006
    Posts:
    88
    Likes Received:
    0
    Location:
    Riverside, Ca
    On my 'Burban and my Dads F150 we both have the big round 7 pin plug wired to our trailer (I am positive it is not wired the standard way, but "He was a truck driver damnit, it's right". Anyways, Behind the bumper I have the flat 4 connector adapter incase I ever have to get a Uhaul trailer. So I am plenty covered.
     

Share This Page