I have posted here concerning my recent UCA and tie rod installation. The advice was spot on and valuable, but only made me more certain I have done the job right. My car still drives like I am on ice at speed. After checking and re-checking torque specs and assembly technique and giving everything another check, I have come to the conclusion my power steering no longer becomes heavier as my speed increases. This seems counter intuitive. Shouldn't the power assist fail in the more difficult to steer mode? I admit very little knowledge as to the mechanism of this, but assume that the variable part is a nozzle that decreases the fluid pressure as speed increases. I am going to flush the pump today and put clean Mercon V in it, but I thought I would post to see if anyone had ever encountered a problem like this, and what they did about it. My car is a '98 MarkVIII that is still on air and was aligned the day after I replaced the front end parts.