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atf +4
242 transfer case uses ATF+4 transmission fluid. 247 transfer case uses a special transfer case fluid available from the dealer.
I have a Chevy 350 from a 1985 blazer in my 1990 wrangler. So yes it is. I also have the transmission and transfer case from it in my jeep to.
Automatic trans fliud
It uses automatic transmission fluid.
Gear oil...usually 75w90 weight. I would use Royal Purple or any synthetic gear oil. That goes for both differentials and the transfer case.
Jeep recommends 2 Quarts of ATF+3 (Or ATF+4) Fluid in the NP231 Transfer Case that comes on your Jeep Vehicle. Use of any other fluids may cause problems and will void your warranty.
NP243
The transfer case uses ATF.
It is on the center of the rear of the transfer case.
Mopar ATF+3 , ATF+4, or Dextron III
ATF. Either Mopar or Dextron