Need help with Drive belt,bearings etc part number

[zakIXdin]

my car's making loud squeaking noises every now and then when i turn the steering wheel, especially when trying to park. i'm thinking of replacing every external maintenance item like the drive belt,bearings... i already have a new tensioner. what other parts do i need to consider? my car's an Evo 9 GSR. reference with the part number will be greatly appreciated, thank you in advance!

 

[fq-craigus]

Power steering pump maybe mate they sound awful when they are going

 

[zakIXdin]

ouch... oh well. i'll just replace everything out there i guess. any ideas whats the part number for the drive belt?

 

[fq-craigus]

Get it to a garage to diagnose it properly and save replacing parts that don't need replacing mate

 

[Steve220]

Its normal.

 

[zakIXdin]

its concluded that the drive pulley of the power steering is wearing off. it can be easily seen to be vibrating.

so... my mechanic sourced out a used power steering unit from an Evo 4 GSR(not yet paid for though). the only question is (before i spill the cash)...

will it fit into the my Evo9 GSR? or are these units (power steering pump) not inter changeable at all and i need Evo9 power steering specifically?