Per advice from this board, I 've been replacing all the fluids in my recently purchased fzj80 (94, with 200,000 miles). From the info I have, it apprears to have been extremely well maintained. All fluids looked/smelled good. Looks new. However, the front differntial really threw me for a loop. For those of you with kids, lets just say thick and greeen... The rear diff looked golden, like a rich amber beer. The front was disgusting...some thick green glop barely dripped from the drain hole. Is this bearing grease working back to the diff...or did somebody put the wrong thing into the third, or ???? All opinions welcome... By the way, note to all...if you are replacing the oil in the diff and the air temp is low, it would be good to warm the oil before trying to pump it under the truck. 3.5 qts at 28 degrees on your back is hard work.