Guess I'm late to the party,
I'd keep the extra tub and replace the bearing for future use. From what I've read and my own experience, you'll be needing it.
My front loader's bearing failed @ 2.8 years, (I guess I'm luckier than you). How is it, they cover the drum for 5 years but not the bearing that supports the whole mess? That'd be like Ford or GM saying your engine is covered for 5 years, but not the main bearings supporting the crankshaft.
After going round and round with the rude call-center folks at Whirlpool, it's time for a letter to the COE, (Like that'll be read).
Looks like I'll be replacing it myself. I'll be using a stainless
steel marine grade one though.
I will never, never, never, never, never, buy another product made by Whirpool. I don't care who's name is on the badge. Just plain junk products from a junk company.