95 Harsh clunk noise when in 4x4
 

95 4.0 A/T auto- hubs, Truck makes a clunk noise you can feel when in 4x4 hi or low coming from the front left wheel, have swapped auto hubs left to right and same problem. happens in forward and reverse, only happens when drivline is stressed a little or turning in 4x4... any ideas??

it probably your t-case chain slipping. it feels like it coming from up there cause your case is on the left side....i replaced parts for ever trying to fix it and finally did the t-case and it is all gone now. does is kinda feel like it skips and sorta jumps forwards? thank kinda what mine did.

thats exactly what it feels like actually... hmm i wonder if there would be metal shavings in case...

ya im not sure...but i replaced mine and it was gone.

this ended up not being the hubs, but the parts that the hubs connect to. replaced with warn manual hubs, all good now!