There are a few different racks pending on month/year/model etc. You will need to supply this information of a VIN number will be even better to narrow down which exact one you need.
Below is an image of the rack that sits just behind and lower of the engine, connects to your steering column and both wheels (thats how your turn).
If you pass on the information we can provide the correct part number and even quote to get the part as well (note they are not cheap new anyway). Once replaced they also need to be programmed to the car.
Hope this helps..
LW Steering Rack.JPG