the front axel tries to lock up while driving. as we get ready to go the problem starts up several times have turn the wheel to the right and it lines up , now we have to first shift to four low and back on the run for this to line up , i have replaced transfer case but system is still there , is there a two piece front differential? i need to find a solution as parts have to be flowen up 532 miles and cost 300 more buks