power steering pump..and rack..do they have to be from a 3.2

[vec3.2]

i have a vectra 3.2...the power steering pump is believed to have gone...
Do i have to get the pump from another 3.2 or can it be from any sized engine?..because i cant seem to find one for the 3.2

and also the steering rack..does that have to be from a 3.2 aswell..

THANKS

[john_k_sri]

SRI rack ......is it the same? As they both have a faster rack than other trims.