a body rack and pinion

thanks for the reply, did you replace tie rod ends with hiem joints? i have been told not to swap spindles because of bumpsteer and something called ackerman not sure what that is. how did you arrive at the final location of the rack and how high or low to place it on the crossmember. im not familiar with a sweet rack is that a brand or can you tell me what rack will work, thanks again. jim