How do I aline steering arms on cub cadet 1554 so that one wheel does not go in one direction and the other wheel in the opposite direction? Steering links are measured and seem to be the same length and straight, but when you start driving front tires get out of aline and go in opposite direction.

Could be the ball joint tie rod ends, or could be the bushings are worn, or the king pins are bent. Have you hit something or ran into an object pretty fast and hard?