Hi Thomas, I took a picture of my two brake cylinders. The only difference I see is it looks like yours may be TSO C26 "a" instead of "b" that is on mine. Maybe someone smarter than me can chime in.
Attachments
McCauley 1.jpg (143.18 KB, 90 downloads)
McCauley 2.jpg (100.77 KB, 90 downloads)

Last edited by Grant Metsger; 01/18/22 11:44 PM.