dual batteries
Street Queen to the extr3m3
Joined: Jan 2005
Posts: 4,554
Likes: 3
From: Lubbock, Texas
IIRC there is a ground that goes to the frame and one to the body as well. I could be mistaken though. I also belive there is a ground from the engine to the body and to the frame as well... I would go with frame though... Better yet set it up exactly how the factory batter is setup... I.E. if there is a ground going to both frame and engine do the same with other battery....
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Elder User
Joined: Aug 2004
Posts: 620
Likes: 1
From: NE Wisconsin
Thanks. I'll just ground the crap out of everything. If the body isn't grounded, your guages go all goofy. Forgot that after I rebuilt the engine. Couldn't figure out why it was running sooooo hot.(yet I could hold on to the radiator hoses)
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
I usually run a direct ground to the engine (#2), front radiator support (#12), frame (#2-#6), body (#12), exhaust (#14) and voltage reg (#18). For a big alt, I run at least a #6 to it or its bracket.
Lead Driver
Joined: Mar 2004
Posts: 8,924
Likes: 153
I have both of mine grounded to the motor & one ground from the motor to the frame. Both ground cables have a ground wire to the core support. One from the rear of a head to the fire wall, One from the cab to the frame. One from the bed to the frame.
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Post Fiend
Joined: Jan 2004
Posts: 5,377
Likes: 2
From: Elkhart IN
I took mine to the frame, body, and motor. Can't go wrong with that. Adding the ground to the motor straight from the battery got rid of my horrible alternator interference I was getting through my subs.
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Elder User
Joined: Aug 2004
Posts: 620
Likes: 1
From: NE Wisconsin
Something to think about. When useing dual batts., you should use the pos. on one battery and thneg. for grounding on the other. This forces both batteries to get used. If you ground the same battery as the positive is used, it will cycle mostly on that battery.
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