ok so i noticed today driving on a snow covered road 25-30 in 4 H i was hearing a grinding noise in the front endishhh, area, and it feels like whatever it is holding the truck back a little, when i let off the gas, and when i take it out of 4x4 it stops i just replaced the pass side hub and new UJ in the front drive shaft anyone have any ideas as to what this could be?. i searched and someone said something about the yoke bearing??

 

Remove the hub and redo it, possibly the splines are not disengaging. Also check the axle joint in the front axle shaft, that also might be stripped.

 

If it only does it with the hubs locked check the axle and spindle bearings.

 

ok i checked what i could were gettin hammerd with snow right now, but i checked the front shaft and the yoke it sees to be good, but i noticed theres a boot on the front shaft amusing its for flex, does it supposed to be up front or flipped around tot he back, and its doing it with everything locked in and in 4H i got one UJ thats wore a little on the driver side, could this be causing it?