While changing my transponder someone had noticed that I had a broken rudder return spring. I ordered two new ones (approx. $7.00) and had them installed by the mechanic at my airport. The time was 2.3 hours. Seems awfully long to me to install two springs but I will be the first to admit I didn’t even know the plane had rudder return springs!

Is that a reasonable amount of time to change the springs?
Thanks