Mustang Steve has a kit to fix the hinges so they will last a lifetime.
Here are a couple of pictures of what I did to my 68 hinges. I had the materials needed for this mod but if you don't Steve can supply all the stuff, I think he may even have an exchange program for these.
I used full length bronze bushings inside the top to bottom steel tube and pins made from grade 8 bolts with a zerk for lube.
Modified 68 Mustang convertible, 331,AOD, MCA Red Grille Medallion, 2014 MCA Pinnacle Award Driven class
05 Mustang, MCA Grand National Gold (sold)