I am hoping I am putting this is in the correct place. We have a 2001 Grand Cherokee that we want to convert from 2wd to 4wd. It has the 4.0 and i'm not sure what trans. It does have some tranny issues, so I would like to use an auto trans, transfer and front axle from an XJ. Has any one done this swap? My main concern is computer stuff, otherwise it seams like it would be a pretty straight forward bolt in. Any help would be great. Thanks in advance.