Samsung WFO804W8E grinding, loose drum, leaks

Bearing failure in general. This is for the above and anyone in the future who stumbles on this topic.
If the machine, bearing wise, has failing bearings = your typical light off key slight rumble noise that is the time to take the thing to bits and change the bearings. The bearings are all marked / coded so you know what sizes to get as is the oil seal. If you thrash the machine you will most likely trash it and so when the drum starts to droop, feels loose, grinding noises and possible the belt falls off you will have left it too late: the bearings especially the larger of the two i.e. the front bearing disinergrates into shrapnel = the outer race is usually nigh on impossible to knock out because there is simply nothing to hit! The outer race is usually in the same plain as the bearing tube. PLUS because the bearing is in shrapnel mode it will damage the bearing spider aluminium drum support`s oil seal ring hub; chews it up. So you would now need 2 bearings, 1 oil seal, and the spider. On many machines that spider only comes with a new drum. Add all that up it is expensive. Add all that up and pay someone to do it for you it`ll be very expensive. The latter condition is usually how a repair tech finds the machine i.e. to put it bluntly, well knackered!!. Best bet is to scrap the blighter. The cheapest machine where you can get the bearings separate from a whole rear tank and a new drum with a new spider is a Currys Logik but it`ll still be fairly expensive unless you can do the job yourself
Also these days a great many drums/tank come as a seal unit where you cannot change bearings nor the spider even if you wanted to, a sealed tank could range from just less than 200 quid to 350 to the 400s and something.
So at the best drum bearing changes are only POSSIIBLY feasible if you have the experience and so no how to do the job as a DIY and /or caught the machine very early in its bearing demise beginnings so long as the tank unit is not sealed.
Lastly the other point is when a machine is on the spin cycle and you have a horrendous loud knocking noise (check the concrete weights first) which sounds like you are spinning a house brick and what looks like a warped drum both that suddenly occur out of the blue and that is one or two legs of the spider rotted away and so fractured. Purely academic of course usually snowballs to being a scrap machine based on costs: so you are back to a new spider or drum complete and best change the oil seal too and maybe maybe not the bearings too.

If you want to have the bearing option on your next new machine here are some makes that give that option: Lg, Samsung, Curry`s Logik both the Chinese made and Turkish versions, some Siemens, some Bosch and most Neff but the parts t`aint cheap on those last 3. The more expensive Miele – parts… err….are not cheap. Their entry level circ 600/700 quid machine has a sealed tank – God knows how much that would be. So it basically boils down to new machines where you can change bearings being Korean, most Chinese, and Turkish Vestel made stuff e.g. Electra (got nothing to do with Beko). Hoover and Candy are Chinese made BUT they have sealed tanks as do Beko, Hotpoint, Indesit, Zanussi, Electrolux, AEG, Whirlpool, Maytag f/loaders as of 2023 when I retired. Things might have changed since but I doubt it. This is a big subject so I`ve just generalized the issue here and all machines are based on their model and serial numbers.
For those makes pre say before 2002 most of those machines had dismantlable tanks so were fixable that makes them now circ 23 years old – there are still some out there at that age today, whether you can still get the parts is a different question!