Prowrench Posted July 24, 2019 Share Posted July 24, 2019 Does anyone know what size battery cable was used on 80's era R-model with 4 six volt batteries? Quote Link to comment https://www.bigmacktrucks.com/topic/58262-battery-cable/ Share on other sites More sharing options...
j hancock Posted July 26, 2019 Share Posted July 26, 2019 Mack used 3/0 battery cable in that application. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/58262-battery-cable/#findComment-428798 Share on other sites More sharing options...
Prowrench Posted July 27, 2019 Author Share Posted July 27, 2019 16 hours ago, j hancock said: Mack used 3/0 battery cable in that application. Thanks, thats kind of what remember and that is the size of starter and battery lugs i have in my old stash but was looking for some reassurance Quote Link to comment https://www.bigmacktrucks.com/topic/58262-battery-cable/#findComment-428845 Share on other sites More sharing options...
JoeH Posted August 7, 2019 Share Posted August 7, 2019 You can convert over to 12v batteries; real easy. Just put the positives on same side and jump them together, and negatives same deal. Instead of POS to NEG jumper. You'll need to trace across left battery box to right to make sure you aren't doing anything goofy like wiring it up to 24v. Quote Link to comment https://www.bigmacktrucks.com/topic/58262-battery-cable/#findComment-429503 Share on other sites More sharing options...
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