I have a 98 wrangler and the 4wd is not working.The first thing Ive tried was to adjust the shift linkage and it did not work however it does feel like its engaging.Here is what it is doing. When I put it in 4wd it seems to click in but when I hit the gas it makes a really bad noise almost like two gears grinding their teeth together and slipping. I do have a noise when I drive it down the road in 2wd almost like a clanking.This only auidiable between 10 and 30 mph, after 30 you cant hear it. I jacked up the front end put it in 4wd drive and I can hear the click when I turn the wheels.I also jerked the wheels to see if it makes the same sound as hitting the gas in 4wd and it does.When you get under the jeep you hear the noise coming from the the transfer case. It seeems that the transfer case is the issue.
Where do I go from here? Should I start looking for another one? How hard is it to rebuild yourself?