when you do this your powersteering pump will be bypassed. you can then disconnect the lines from the steering rack (I would suggest looping the lines into eachother). 
Read more: 
http://corollacarclub.proboards.com/index.cgi?board=diy&action=display&thread=3370#ixzz1aPoEg9EY 
  
  
  
  
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