Big 3

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rmzsuzuki89

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I'm working on doing the big 3 for my Expedition, as I haven't done it yet. I think I found it, but I'm not 100% sure where the engine to chassis grounds are. I already have the alt positive to battery positive done. And I'm gonna find a new place for the battery ground, as the factory one kinda sucks lol. Any ideas where I should relocate it, and could someone give me a hint as to where the engine grounding spot is?

It is an 03 Ford Expedition XLT 5.4L.

EDIT: Sorry if this is in the wrong place, if it is, could a mod please move it. I didn't know whether to put it here or in electrical since it applies to stereo and electrical lol.
 
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