Hey guys I have been searching older posts for a while now and just can not find what I’m looking for. I have a 1984 cucv m1009 last owner tried a conversion to 12v system. I am in the process of converting back to 24v. My only problem I’m having is the resistor bank on firewall is gone. What is the best option to use to convert 24v to 12v so the glow plugs are not fried. I would also like to send 12v to the power block that is in the cab behind the passenger seat to run a radio box sound system. Any help would be greatly appreciated!