No one makes a repair kit for the SW door lathes. they do sell the spring for the latch itself but no one makes the correct spring for the remote. Bratton`s sells the correct one, but there is NO spring in the spring. I have rebuilt well over 100 of them. and I`m down to my last good remote spring. so if someone out there has another source for the correct remote spring. let me know. Keith what is wrong with yours.