[Highway Star]

Originally Posted by Derek69SS

The stock spindle/tall balljoint is definitely better than B-spindles, but the difference is more in the feel and predictability than overall mechanical grip... both improve the camber curve, which improves grip (explained HERE ), but neither are perfect. Tall balljoints are not quite tall enough, and B-spindles are too tall.

The most notable difference is the location of the steer arm.

Tall balljoints move the steer arm upward by 1/2", which nearly eliminates all factory bumpsteer. This is good... makes the car more predictable over rough surfaces.
B-body spindles locate the steer arm too low, which doubles the factory bumpsteer, making the car less predictable on rough surfaces... they're also too long, which slows the turning ratio, and widens the turning radius.

What he said.