The total travel of the rack and pinion from lock to lock is significantly shorter than the stock steering box travel. This means that a rack and pinion with stock steering arms will have significantly slower steering and less turning radius than stock. To correct this issue these shortened steering arms bolt in place of the stock arms and use stock ball joint/ tie rod.
As well the arms increase the Ackermann in the steering system, move the outer pivot points for decreased bump steer, and allow for more tie-rod articulation than stock.
These arms can be used with the V2 rack and pinion. The resulting geometry is a little different. For best results when installed with V2, the strut should only have about 4 degrees of caster. This is less than the 6 degrees typically recommended.