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SportTrac Discussion
Audio Systems
Big Three Upgrade - Help! Show me your pics!
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<blockquote data-quote="Gavin Allan" data-source="post: 934495" data-attributes="member: 60736"><p>I'd tie the grounds together- both batteries and the alternator case. Jumper both of them to the chassis at both ends, and to the engine at the alternator. Doesn't make sense to overkill on the positive without beefing up the negative too. Bet you are getting current differences if you measured between the two negative battery terminals, as well between either of them and the alternator, especially between the rear battery and the alternator case.</p></blockquote><p></p>
[QUOTE="Gavin Allan, post: 934495, member: 60736"] I'd tie the grounds together- both batteries and the alternator case. Jumper both of them to the chassis at both ends, and to the engine at the alternator. Doesn't make sense to overkill on the positive without beefing up the negative too. Bet you are getting current differences if you measured between the two negative battery terminals, as well between either of them and the alternator, especially between the rear battery and the alternator case. [/QUOTE]
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SportTrac Discussion
Audio Systems
Big Three Upgrade - Help! Show me your pics!
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