Steering rack supports

[chriseyj]

Hi just a quick question.
Should the steering rack supports cp19 & cp20 be 285mm apart or 288mm.
The book states the mounting hole centres should be 258mm apart but if you add the differece from either side to this, 30mm you get 288mm from edge to edge, not 285mm.

Have seen this asked before but didn't see a definate answer.

Thanks Chris