Ok, thanks.pulsarboby said:no the gearbox and transfer boxes are seperate units which are bolted together.
but when you remove driveshafts then you will lose oil from them both as the n/s driveshaft fits through the gearbox but the o/s one enters through the transfer box.
so yes if you have removed a shaft (either one) then you will lose all transfer and gearbox oils.
they will not fill eachother through one plug!