The Ford Barn

mb_camp · 09-18-2025, 03:56 PM

hello all, newbie to early flatheads here. I just acquired a 1937 ford 1 ton truck that has had a 8AB installed in it. The claimed to have "converted" it to 12 volts but truth be known all they did is install a 12v battery with starter solenoid and an independent ignition switch. Although the generator is in place a new writing harness was installed and nearly nothing under has been hooked back up so there is no charging currently. I am planning on going back to a 6v pos ground set up but my question is did the 37 trucks use a voltage regulator or a cut out on the generator? I am a Model A guy so no stranger to cut outs but it looks like the the generator is not set up to use a cut out (which is not unexpected considering is a later motor). Any input would be appreciated!!

09-18-2025, 03:56 PM	#1
mb_camp Junior Member Join Date: Sep 2025 Location: Coastal Maine Posts: 9	Voltage Regulator vs Cut out hello all, newbie to early flatheads here. I just acquired a 1937 ford 1 ton truck that has had a 8AB installed in it. The claimed to have "converted" it to 12 volts but truth be known all they did is install a 12v battery with starter solenoid and an independent ignition switch. Although the generator is in place a new writing harness was installed and nearly nothing under has been hooked back up so there is no charging currently. I am planning on going back to a 6v pos ground set up but my question is did the 37 trucks use a voltage regulator or a cut out on the generator? I am a Model A guy so no stranger to cut outs but it looks like the the generator is not set up to use a cut out (which is not unexpected considering is a later motor). Any input would be appreciated!!