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Wow, nice failure!
That transfercase is limited to 97-99 dak/dur. I think the 42 RE (yours) and 44Re (5.2) are the same output shaft (input of the transfer). Not sure on 46RE (5.9). Also not sure on manual transmission trucks. 2000 and newer case is different, so 4.7 or 3.7 is out of the picture completely.