The only thing that holds it together are the fittings on either end.
Remove them, and it WILL come apart, although it will take a little effort.
If you can get the rod to move at all, clamp one end in a vise and start working it back and forth until you get to the outer extreme end of the stroke.
Keep working it back & forth, to the extreme end until something, one end or the other, starts to pull out.
You can then drive the other end out, whichever one it is, w/a drift. I would suggest a hardwood dowel to avoid possible damage to the inside end of the piston or plug end.
CAUTION: DO NOT CLAMP THE TUBE IN THE VISE! You do not want to distort it.
You should be able to get it rebuilt for around $130 or so w/new rod, hoses w/fittings and seals.
I was unable to get the smaller hose of the two and had to settle for the same size for both.
The shop time was the largest part of the bill.
The rod itself was only about $5
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