I have a 96 Explorer with automatic and 4 wheel drive. The manual specifies Mercon in the transfer case. Since oem Mercon is no longer available from Ford, what should I use? The label on Mercon V fluid that is now available from Ford clearly states not to use it in the transfer case. What do the site members have to say? I prefer Ford fluids but I'll use aftermarket if I know for sure which one is correct. Thanks. David.