I had issues with mine. Instead of McGivering it, on the recomendation of members of this forum i loaded some basic tool and cordless drill and went to my local RV center with my trailer. Service guy came out and we discussed the proceedure to replace and he sold
me the door lock. I did the replacement in the shade of a tree right there. Did not need more advise or parts/tools but they were right there. Whole lot better then running back and forth, getting the wrong part and trying to explain what I needed and showing tiny pictures on my phone.