Installing New Tires w/ Bad Rack & Pinion?

[pandrade]

if your rack leaks that could be the directonal issue, as a quick fix i would go to the FAQ's and check how to flush the ps system and put in lucas ps fluid whith stop leak( it stoped my leaking for about a month) could be that during a bump you hold the wheel straight but that loss of pressure some where in the system is what causes it to wounder.

I think I'll just swap the tires before my trip and just drive like that for a week

that seems like a good option, i wouldent worry about tire wear so much the rack its self doesent cause that other suspension components would, try the flush and lucas see if that is a temporary fix