When the hose is built, reinstall it to verify that it fits. Make sure it's not too tight or too lose, and verify your routing. If it's too long, it can be shortened. If you do have to shorten it, I've found that there's a minimum of an inch that needs to be removed due to the fact that the hose is damaged at the end with the fitting from the previous assembly. However, if it's too short, it can't be lengthened and you'll have to start over. I keep all my miss-measured hose assemblies in a box, hoping to use them in the future and install the other end.