No. Automatic transmission fluid is the recommended fill.
No. A 1993 Jeep does not have such a part.
75w90
It is on the center of the rear of the transfer case.
About 1.5 quarts
diagram from front vacuum motor to transfer case of 1993 Jeep Wrangler
It uses automatic transmission fluid.
they might be different on some models but they would be interchangeable either way.
automatic transmission fluid, ATF
Mopar ATF+4
Dot 3
Mopar ATF+4 trans fluid