maique Posted November 19, 2007 Share Posted November 19, 2007 hey i have a 1974 dm does anybody know what battery i should have either 6 or 12 volt i really dont know looking for answers thanks Quote Link to comment https://www.bigmacktrucks.com/topic/3100-batteries/ Share on other sites More sharing options...
Camelback Posted November 20, 2007 Share Posted November 20, 2007 Being a 74 model the truck came out with 4, 6 volts hooked up in a series. You can go with the 6's but the more modern way to do it is take 2 ,12 volt batteries and hook them up parellel. You get better service and less trouble out of the 12's parellel. Usually 2 will be all the cranking power you will ever need. Thats how i done my R-600 79 model. I more or less use my passengers side battery box as an tool box. Quote Link to comment https://www.bigmacktrucks.com/topic/3100-batteries/#findComment-15169 Share on other sites More sharing options...
Camelback Posted November 20, 2007 Share Posted November 20, 2007 I forgot to mention in my first reply that you have a 12 volt system. 2, 6 volts hooked up in series makes a 12 but less cranking power. the better way to go is 2 ,12 volts in parralel will give you more cranking power. Quote Link to comment https://www.bigmacktrucks.com/topic/3100-batteries/#findComment-15170 Share on other sites More sharing options...
maique Posted November 20, 2007 Author Share Posted November 20, 2007 hey thanks for the info Quote Link to comment https://www.bigmacktrucks.com/topic/3100-batteries/#findComment-15174 Share on other sites More sharing options...
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