6 volt
From the factory it will have a 6 volt, positive ground system. However, it is popular to replace the original system with a modern 12v system.
Small pick up trucks use a 12 volt system. Large highway trucks use a 24 and sometimes 36 volt system, depending on the lighting load that is connected.
just so you know, all trucks used to have a full 24 volt system and cars had a 6 volt system so the design is not a nightmare. still a lot of tractors about with a 6 volt system. now a good electrician can connect a 12 volt unit to a 24 volt system if he knows what he is doing it is just a matter of knowing where to do it on a battery. you can also buy a voltage converter and wire it in. and yes you can still buy 24 light bulbs Before you go deep inside this, check the voltage on the cigarette lighter. It should only be 12 volts. The 24 volts are used in starting the truck only. By thinking this through, designing a vehicle that worked on a 24-volt electrical system would be a disaster. No one would buy it. All the current electrical components for vehicles are for 12-volt systems. Lights, gauges, radios - everything! How much trouble would it be to replace something like, say, a map light if a 24-volt lamp had to be located? Alternativley Check the powercable as many of them can work on different voltage say from 10 to 30 volts and power the gps with the correct voltage.
Sure you can. But consider what could happen if you did. If precision of time or speed was built into this 6-volt system, a 12-volt battery will make it work faster until something shorts or burns out. If you need more lasting power for the 6 volt system, you should consider putting two 6-volt batteries in parallel to power your 6-volt system.
If you want your bulbs to last longer then use 130 volt bulb on a 120 volt system. The light emitted by a 130 volt bulb, when comparing it to a 120 volt bulb, will be a bit dimmer.
6 volt positive ground is the answer!!!!!!!!
If your 1949 truck is a CHEVY or GMC and it still has the original electrical system, it would be 6 volt, negative ground. If it is a Dodge or a Ford with the oringinal electrical system it would be 6 volt, positive ground.
If the 49 dodge truck is still on it's original 6 volt electrical system it is positive ground. All 6 volt auto systems are/were positive ground. All 12 volt systems are negative ground.
Originally it would have been a 6 volt system.
12 volt
Assuming the truck has a 12 volt system, connect the batteries in parallel, that is positive to positive and negative to negative.
The "bus" is the system the computers use to communicate. You will need a scan tool, volt/ohm meter, and wiring diagrams to diagnose. Any of the computers on the truck or the wiring in between could be the cause of the lack of communication.The "bus" is the system the computers use to communicate. You will need a scan tool, volt/ohm meter, and wiring diagrams to diagnose. Any of the computers on the truck or the wiring in between could be the cause of the lack of communication.
From the factory it will have a 6 volt, positive ground system. However, it is popular to replace the original system with a modern 12v system.
Small pick up trucks use a 12 volt system. Large highway trucks use a 24 and sometimes 36 volt system, depending on the lighting load that is connected.
== == It is a 12 volt system. The alternator should put out 13.5 to 14.5 volts with the engine running.== == It is a 12 volt system. The alternator should put out 13.5 to 14.5 volts with the engine running.
No
Electrically there is no reason why not .