The three replacement locks we ordered were installed yesterday on our 35 year old doors and they fit perfectly. The doors should look like new once their outsides are painted. The old locks were also not working well. I would advise getting an expert to install the new locks, because after 35 years the old locks were difficult to remove. From the outdoors exposure the old lock parts were frozen in place and a small hack saw had to be used at times to remove them. Getting the old locks off was not an easy job, but all worked out at the end. Thank you Countryside Locks.