4wheel drive causes frount to turn inwards in 4wheel drive

Get the front suspension checked, have seen A arms go bad causing handling problems

There is a YouTube video about that. It is similar to "Death Wobble" or "Chevy Shake". watch https://www.youtube.com/watch?v=PDJr4oEpiX8 . THe torque put on the wheels causes the tires to start to pull. since both tires are pulling forward, they try to pull towrards each other. A lube job may fix it somewhat, but you may need new tie rod ends and or ball joints. There is another video about the tie rods not being strong enough. In that video he got the Death Wobble on snow and in 4-wheel drive. It was so bad that it bent one of the tie rods, He installed thicker rods and that solved the problem. Good Luck.