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You will see 2 plugs on transfer case, the lower is to drain, upper is to fill or check level
Transfer case is lubricated by the transmission fluid.
A 2002 Ram transfer case uses ATF+4 transmission fluid.
Remove all wires attached to the transfer case. Remove the driveshafts. Drain the fluid out of the transfer case. Place a transmission jack under the transfer case. Unbolt the transfer case from the transmission. Unbolt the crossmember the transfer case rests on.
Transfer cases are not like Transmissions they don't have drain pans. They only have drain and fill plugs. Transfer cases do not have filters either.
18mm
The one that fits.
30mm
Motorcraft MERCON automatic transmission fluid in the transfer case according to the 2002 Ford Ranger Owner Guide
On a 2002 Ford Explorer with the Control Trac 4x4 system , or the all wheel drive system , the transfer case is bolted to the rear of the transmission
Motorcraft MERCON automatic transmission fluid is used in the transfer case
According to the 2002 Ford Expedition Owner Guide : 1.9 liters ( 2.0 quarts ) of Motorcraft MERCON automatic transmission fluid is used in the transfer case