Jake, nice truck, mopars don't have splash lube, we have a real oil system, the oil pump is on the pass side below the carby, behind the fuel pump, has a plate with 6 small bolts, the oil filter as has been mentioned is inside that canister, get a new filter, drain the oil & get it running, as for a 12volt conversion, any mid 50's side valve six starter thats from a 12 volt car should bolt in tho' your starter mechanism may need changing, ie the solenoid/starter circuit might have to be updated also use a 12 volt mopar generator, change the globes in all the lights, head,tail,stop, blinkers,instrument & interior lights and put a voltage drop on the fuel guage circuit, also change the coil to a 12 volts one & everything else should be fine...the amp guage reads amps, not volts, and the water & oil guages should be mechanical with no electric connections.........note also that you should measure the length of your engine to be 100% certain which it is........23" or 25" the 228 version is in the 25" long series, not to be confused with the 230 from the 23" long series, this is important when or if you need to get any engine parts that are affected by the length, ie, intake/exhaust manifolds, cylinder head, pistons , water tube..........also get hold of a workshop manual, even a car one would be a big help regarding engine parts..........anyway welcome to the best mopar 6 site on thenet........regards from sunny Sth Grafton NSW, Australia...Andy Douglas