Front end shakes in 4x4

[Boozerbear]

I put it in 4x4 auto or low and soon as I hit 20mph it starts to shake I think? Its fine in 2wd.

 

[my98nnj]

A bit confused... You have Auto, 4 high and 4 low.
Auto is basically rear wheel drive unti the rear drive line detects slip.

What setting are you getting the vibration in?
4 high and 4 low should only be selected when you have lose road surfaces such as snow, gravel, dirt and mud. If your in 4wd on smooth pavement (have traction) and turn, the front end will bind up. Is that what your feeling?

 

[Boozerbear]

I have no place to test it on a loose surface so I'm using the street atm till it snows I guess.

This is happening in a straight line and right at 20mph it feels like the drivers side tire is maybe dragging because it pulls to the other lane I haven't tested it much since I cant afford to fix it if I break it atm.

as far as 4x4 modes mine has auto and low there is no high option I only assume auto is the high mode my issue is in both 4x4 modes.

I don't know much about automobiles but Ive ruled out barring and hub since I would think that would effect 2wd aswell.