Old 06-08-2015, 05:45 AM
  #2  
jayvee34
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Join Date: Dec 1969
Location: St. Augustine, Fl.
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I would say either gauge, as they both will handle a lot of amps. Just a short
cable of the same gauge to the frame, and then another to the engine or trans.,
for a good ground should be OK. In my opinion one cable from the starter to
the positive side of the battery and short cable to each positive post to tie
the two battery's together, and the same for the two ground posts of each battery's.
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