1994 sonma 4x4 ex cab play in drive train ??

Yes but it depends on drive train rear and bed size junk yards dealers forums and online interchange sites can give you the information have available motor transmission (auto-stick ) 4x4 short bed or long bed

This is because the 1500 series is considered light duty regardless of whether it is 2x4 or 4x4. When you add the large mud tires and wheels to the vehicle, that alone stresses the hubs and transfer cases. Add in the overevvving and sudden start-stop jolts of mudding, and you have all the making of drive train failure. If you want to play big boy games, get big boy equipment.

check your three mounts; if they're ok then it's most likely a trans. problem. by three mounts I mean the two engine mounts and the one under the tail of the trans.

You might want to replace the filter in the transmission and make sure ththe fluid clutch is operating correctly. Both of these checks are relatively cheap compared to rebuilding or replacing your engines transmission. Hope this helps.

K1500 , why skip telling this fact. K2500, k3500 ? we can't just guess.
we can not just drive the this truck and know.
impossible. post all driving evidence first.are you on ICE ?
no road conditions told
nor what transfer case option it has.
to fix 4wd, one must know the drive train.
if not there can be no good help.blind
transfer case full Dexron (max#) ATF fluid>?
not all leaked or leaking out.
NP205?? part time or NP208 part time,, not for pavement lacking ICE
NP241 full time 4wd
BW 1370, BW4401 and BW4470(borg warner)

6boxes used, the tag on the box is what it is.,for sure.
the 205 is for off road only

step one, under car rear of TC (transfer case)
that tag learn to know the tag model

207, top line, and line 3 date 1986, 261 is 2.61:1, 4Low ratio.

This is possibly a tire out of balance.

You need to crawl under the truck and inspect each brake line for leaks. You also need to check wheel cylinders and calipers. The chances are pretty good that you will find a small leak in a line or a wheel cylinder leaking, pay close attention to the rear of the truck because that is normally where these problems occur. Hope this helps.

I'm betting they are different lengths and different size u-joints,

Check your driveshaft universal joint (u joint). When the needle bearings go, this is the sound it makes. To check, chock all wheels front and rear, put in neutral, if 4x4, put 4x4 in neutral also, go under vehicle, grab driveshaft at u joint and try to turn back and forth, watching for play, wobble in u joint. U should be able to see it. Let me know how u do.

sound's like your front diff is seized :( could be wrong but id check your front diff fluid for level, color and any metal shaving's as they will be a good start. hope this helped.