3 racks in the corsa b. Completely manual like mine is and like a nova, manual column and manual rack. Then some car had hydralic power steering, normal coloum but have a hydro rack, these are the ones with the pipes. Then later cars had epas it's all contained within the column and the rack is completely manual. The epas rack is the one to get as its manual when attached to a normal column
Can’t be much in it tho?
It's an upgrade worth doing if you find yourself needing a rack or if you going to do a lot of track driving, obviously the trade off is sterring is heavier for daily use