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Whats the best way to do a chasis ground. i have the paint ground off and down to steel. I rana bolt through it with my ground wire attatched. is there a better way.

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As long as its bare metal you should be good. I usually grind mine down to bare metal, drill out a hole, use a bolt with my ring terminal and wire attached, inserted into the hole and a lock nut on the backside. Once done and I see that I am getting a solid ground, I use undercoating and spray over it to prevent rusting.

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Only thing beyond this ^^^ is to use an internal tooth lock washer between the body and your terminal. The little jagged points on the washer will bite into both surfaces for best contact.

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