Anybody have problems with the 28 roadster repro door latches. I had the left one break and now the right one has done the same thing. It appears the latch-plunger is made of a type of cast pot metal and they are braking. Good thing is they break in the closed position so you can still drive the the car till it is changed. Does anyone know it the originals had a steel plunger? or if there are repros that have a steel plunger?