What was the name of the manufacturer? If you purchased it online, some of the items are poorly manufactured. If it is leaking at the rear,
If it is leaking from the rear, the only thing you can do is fix or replace it. The cause in this case wouldn't be related to the push rod. I wish I had a better answer.
I don't know if you need it, but here is a link that explains in general how one is replaced:
Also, if you want to repair/rebuild the one you have, I attached the directions below specific to this vehicle. If you look at the exploded view, at the rear of the primary piston there is a seal (number 8 in the picture). That is what has failed.
Let me know if this helps or if you have other questions.
See pics below.
Images (Click to enlarge)
Sunday, November 27th, 2022 AT 5:52 PM