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Best option for grounding battery cable to frame

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Crom, Apr 8, 2013.

  1. Apr 8, 2013 at 10:04 PM
    #1
    Crom

    Crom [OP] Time is precious; use it wisely

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    What is the simplest way to run a new aux battery ground cable to the frame? I'm using #2 AWG cable with copper lugs. Would a large self tapping screw work? :help:

    This is for an auxiliary battery in the bed of my truck, not the primary starting battery. Thanks in advance.
     
  2. Apr 8, 2013 at 10:55 PM
    #2
    03f5sp

    03f5sp Well-Known Member

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    I always bolt it to and existing bolt.
     
  3. Apr 8, 2013 at 11:13 PM
    #3
    maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    I would drill a hole, clean both front and backsides of any paint, use a bolt with a nut and a star washer against the frame on the backside and lug against the frame on front.
     
    Last edited: Apr 8, 2013
  4. Apr 9, 2013 at 12:30 AM
    #4
    Jimmyh

    Jimmyh Well-Known Member

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    This. ^^^

    I always use copper bolts, nuts and washers also. A little locktight is also good.
     
  5. Apr 9, 2013 at 12:34 AM
    #5
    majorhavok

    majorhavok Rabid Conservative

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    Sounds cool, If it is going to be hooked up to main battery, why not tie into main battery ground wire?
     
  6. Apr 9, 2013 at 1:30 AM
    #6
    maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    It's a separate battery located in the rear of the vehicle. Frame is common ground.
     
  7. Apr 9, 2013 at 12:18 PM
    #7
    Crom

    Crom [OP] Time is precious; use it wisely

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    Thanks. Drilling a hole it is then. I'll have to go find a cobalt drill bit to do the work. :)
     
  8. Apr 9, 2013 at 12:56 PM
    #8
    nat

    nat Well-Known Member

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    On my rig, there is a factory ground at the rear of the truck. Look at the frame behind the drivers side rear wheel. I just hooked my battery up to it yesterday.
     
  9. Apr 11, 2013 at 11:07 PM
    #9
    03f5sp

    03f5sp Well-Known Member

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    Why would you drill a new hole when there are plenty of bolts that you can use instead of wasting time and money?
     
  10. Apr 11, 2013 at 11:24 PM
    #10
    Crom

    Crom [OP] Time is precious; use it wisely

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    Many, see build thread.
    I made the thread before I inspected the frame. So it was from a theoretical point of view. As it turns out, there is a 3/8 hole on the passenger side near the wheel well that's perfect for my application.
     
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