replacing bathtub cartridge

Hey everyone

ok I have read the whole internet back and forth and still cannont figure out how to remove this type of cartridge.

If someone could explain to me what I should be doing to replace this as my facuet is just constantly leaking. What do I turn push or pull?
Also it doesn't say a brand name anywhere on it.




thanks

No one knows?

guess i'm in trouble now

Could you back the camera up a bit and give an overall pic including the handle. The limit stop cams you see will come off, and after that, well lets see the pic.

hi, well this is a pic of it all together




what do you think?