As KFX450 mentioned, I use a dowel rod on sliding door.The latch adjuster on door frame would never stay where I adjusted it to, no matter how tight I got the screws in the plate. Dowel rod works just fine. Never had an issue with shower doors in 45k miles. I would use a dowel rod even if the latch worked. After installing wireless camera to keep an eye on my bikes, its amazing how that glass door slams from one side to the other during turns and in travel.
2016, 3500 DRW,CCLB,CTD,G56,3.73
Work and play 40RLS,
PROUD OF MY USAF and ARMY SONS !