Common misunderstanding.DaveJ said:
It's only called the halfshaft because it makes up one half of the total axle between your front wheels. It is physically separate from the other halfshaft (which is located on the other side of your transmission case), so to say that they replaced the entire shaft as opposed to the 1/2 shaft doesn't make sense (i.e., you'd have to cut the halfshaft in half to replace half of the shaft, lol
They replaced the whole halfshaft is what I think you mean.