I recently posted a question about my aw4 not doing anything . i got the xj second hand for a couple hundread bucks , it looked ok and for the price i wasnt going to role in the mudd to check everything out underneath. well i should have . the only thing the guy told me is the engine was swapped out by the previous owner. hmm ok , well i dont know if it was swapped with a HO or bendix . great. well i crawled under neath to check the linkage and there was no transfer case! so im thinking they droped it and made it two wheel drive by getting a 2 wd drive shaft. well if thats the case wouldnt the transmission have been swapped too? to make it 4wd again do i have to swap the tranny ? i have a 88 wagoneer xj rotting away . im thinking about dropping the whole drivetrain and dropping it in it , will it just bolt up? the 88 has the power/ comfort feature (is the ecu the only diff?), does that matter . can i keep all the same electronics or do i have to swap that .