Outer Limits 4x4 Board

hi all,
just wondering if anybody could tell me what ratio the diff would be in a 1983 LN46 hilux. it is a diesel and has a 4 speed gearbox,i cannot read the vin plate so im hoping that someone will have a bit off an idea.

pretty sure its 4.8

thanks mate,
thats wat i was thinking as well
cheers