Remove the mattress or mattresses from the crib, if more than one was used, and set them on the floor.
Locate the screws that secure the front rail of the crib to the frame. Remove the screws with a screwdriver. If the screwdriver is not doing the job, use the power drill.
Take the front rail off of the crib and set it aside.
Adjust the side rails of the crib as far down as they can go.
Set the rail from the toddler conversion kit on the crib. Secure the rail by using the screwdriver or the power drill.
Adjust the spring frame, if available on your crib, down to the lowest level.
Place one mattress back in the toddler bed.