Bad Noise in 4WD

[stratplaya60]

Hi all, Im new here, Hale to the Jeep I got a problem, When I shift to 4WD, it kinda sounds like a tire is squeeling and the jeep kinda goes a little sideways sort of, not much, just barely can tell it. Then I shift back to 2WD and it still makes the same sound for a while until, "KACHUNK" big awful chunky sound and it goes back to normal??? Any thoughts? Thanx a bunch
p.s. its a 94 wrangler

[stratplaya60]

it seems that my jeep needs to be stopped to shift to 4 x 4. is this normal???? my 92 jeep could shift on the fly!!!

[fredjacksonsan]

Does it shift ok when stopped?

[stratplaya60]

Originally Posted by fredjacksonsan

Does it shift ok when stopped?

yea, when stopped it shifts to 4WD just fine!!! Someone told me that they made a few diff. front end units back in the mid 90's and some were shift on the fly and some were not. I just wanted to confirm, thanx for the reply!!!!

[fredjacksonsan]

You may have a different T-case, or the synchros(or what passes for them) in the T-case could be worn. As long as everything works fine, and you're ok with stopping to shift to 4wd, I'd say drive it!