i got a 1972 dodge 3/4ton truck, it has a 225 slant 6, with a 4 speed granny low tranny, and a big rear axle, i think its a dana 60, its also 2wd all i want to know is stuff about it, like what gear size is in the rear end, some stuff about the motor and the tranny, i just bought it and i just want to know more