Whats the price difference betwwent the ashcroft ones and terrafirma? I think for the price terrafirma are ok but just use sealant almost looks like the whole o ring was an after thought to be the same as the competition. I've done some good amount of wading in mine and checked a couple of time and nothing is getting in still nice clean grease from when I packed them.
The originals were letting my diff oil turn into a milkshake with the poxy rubber cap acting like a diff breather or straw depending how you look at it let alone the masses or back lash

