1. You cannot fix that LCI step. They welded the shoulder bolt nut to the top case of the step and the bolt is BROKEN off and the threads still in the bolt.
2. LCI has discontinued their steps as of July 2015 and there are none left due to your exact problem. Most Motohome OEM's have been replacing the complete steps assbly for over 2 years due to this problem.
3. LCI purchased Kwikee last year and are now producing Kwikee and selling them in place of the LCI step
4. You will have a direct bolt match but you WILL have to change the door magnet as Kwikee uses a different normal open versus normal closed switch.
5. I do not believe you can even find that shoulder bolt from LCI anymore. They used to sell them years ago before they started welding the nut to the case. Doug