i am a former BMW fanatic and decided to try something new, so i bought a 1987 fj60. i love it. as i was driving through a creek and struggling up the rather steep bank i realized that i do not have locking diffs. automatic or otherwise...i think? in the manual it talks about locking the front and rear diffs, but i'm thinking that is a fancy option for land cruisers sold to the bin ladens in afghanistan. so, does my truck lack locking diffs or am i just missing some essential control. ps. i made it out of the creek just fine. a locking rear diff woulda helped.