you been here 10 years and still havent fingered out the black text.
need a pic of the other end of the cyl so we can see how it comes apart.
you will also have to limit it on the outside as well as internally for your single ended cyl..
all you have to do is get it apart, and insert something on the shaft. big washers, piece of uhmw you cut with a hole saw etc. etc. then re assemble and put the same ammount of whaterv on the outside of the shaft as well.
(1/2 yer limited distance per side)