First remove the old door lock by unscrewing the doorknob on the inside of the door.
Front door lock diy.
Full installation instructions come with.
Replacing door locks is a relatively simple diy project.
This is a video on how to make a portable door lock.
The screws may be obscured by the door handle so you may need to turn the handle to reach the screws.
You can take it on trips to use in motels or use at home public bathrooms etc.
These may be as little as 15 when purchased separately.
Once the new pins are in reverse the steps to reassemble the lock.
For example if your front door lock is a schlage the other locks you want.
Both doorknobs should come loose from the door when you remove the screws.
Insert the pins and reassemble the lock dump out the old pins insert the new key and use tweezers or small needle nose pliers to match the new colored pins to.
When rekeying multiple locks to fit a single key all locks must first have been made by the same manufacturer.
You can also add a deadbolt to an existing keyed lock.