Today before class I decided to check the level of the transfer case fluid. The latter model RRC have a chain driven Borg transfer case which uses a Dextron II ATF, not gear oil like other transfer cases. So when I got the plug out and stuck my finger in it to check the level I smelled and felt what can only be 90wt gear oil. So my bet is the previous owner had the fluid changed at a speedy lube and the monkeys there just put 90wt and called it done. So remember to use ATF! And remind your mechanic to use ATF. So after a fast fluid change and a race to class on time Im hoping all will be well. The fluid was burned pretty bad.