Hey how's it going? New to the jeep lift. Well really haven't enjoyed it yet but my wife just bought me one as a deployment present. She got a really good deal on it but its a 2.5 which isn't bad since gas prices are horrible. But what i'm posting is to ask a couple of questions. If it was to find a 4.0 and get it rebuilt. Could I just throw it in and not have problems? Like would my jeeps axle/trans anything have any problems. Let me know from your guys experience if anything. I appreciate the info. Thanks guys.
unless the engine is bad, I wouldn't do it. I bought my TJ with out a motor so i ended up doing it. You'll need a new almost everything;
radiator, motor mounts, trans, t-case, wiring harness, driveshafts, PCM, but hey you'll already have 4.10 gears!
1997 Wrangler sport 4in. lift 33 km2's ford 8.8 rear 4.56 gears