Great start to learning how to repack your hydraulic cylinder and save a ton of money !! Now some places call the packing a poly and seals also can be called packing so just depends on the repair guy or dealers or hydraulic place. And torques you will need to get for your cylinder they are all different But i mostly tighten it as tight as i can go and go with that , never have had a problem many many cylinders later. https://www.youtube.com/subscription_center?add_user=rumrunner439