The new 24 volt system required a few changes. First of all, the small 6 volt battery box was replaced with one that could hold four 6 volt batteries wired in series (battery posts are connected negative to positive). This gave 24 volts, with a high amperage. Of course, this also required the use of a 24 volt generator.
However, all the accesories, such as lights; were only 12 volt! So the tractors had very complicated wiring!
With the 24V system, some things were removed, including the V-4 (of course), and its accesories like the gasoline tank, choke linkage, throttle linkage, fuel shutoff linkage, etc. This required a new instrument panel without the holes that these various controls needed. The cranking engine engagement lever was also removed, but the decompression lever remained. Removal of the V-4 also meant the tractor lost a half gallon of coolant. The diesel air intake was changed, as there was no pony exhaust to pre heat it. A crankcase breather was also added, formerly this was done through the pony air intake.