1995 Jeep Grand Cherokee

Drive Train Axles Bearings problem
1995 Jeep Grand Cherokee 6 cyl Four Wheel Drive Automatic 340000 miles

I currently have a 231 j model transfer case that is completely blown. I was told that I could replace it with the same model or a 242 J. Is this true or would I have to do some modifications with the 242? Also, does it matter if I find one from a manual jeep to put onto my automatic? Know one at the wreckers really seems to know. Thanks for the help!
October 28, 2010.

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