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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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#93478 11/17/2005 2:14 AM | Joined: Nov 2005 Posts: 146 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 146 | ok. i just got my first pre 60s truck. there were no battery cables or even a battery. my question is. how to tell if it was positive or negitive ground. and also if its a 6 or 12 volt system. i thought it was gonna be easy. :confused: | | |
#93479 11/17/2005 5:51 AM | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | What is the truck? Chevy or GMC? What year?
There are lots of things that might be clues. If it has any lights check the bulbs to see if they are six or 12 volt. That's not conclusive, but its a start.
If it has a coil look for a voltage indication on the coil. You can also check the starter, generator, regulator, horn relay and other items like that to see if any are marked 12 volt.
Does it have a radio? The radio might supply more clues.
If you are trying to restore the truck, knowing what it is will get to the answer. If instead you are just trying to make it driveable, it might be easier to determine what the parts you have support, and then finish that system.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
#93480 11/17/2005 6:01 AM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | The first place I'd look is in the "search" feature of this board. Then I'd click on this thread and this thread | | |
#93481 11/17/2005 7:36 AM | Joined: Nov 2005 Posts: 146 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 146 | ok. thanks. ill go nose around. its a 48 GMC 1 tonflatbed. and cant get the bulbs out without them messing up the base. this weekend ill be spending a lot of time with it. so ill look at the coil and other things | | |
#93482 11/17/2005 7:35 PM | Joined: Apr 2002 Posts: 1,571 Shop Shark | | Shop Shark Joined: Apr 2002 Posts: 1,571 | 48 GMC would be positive ground in stock configuration. | | |
#93483 11/18/2005 2:37 AM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | | | |
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