I got my new wheel bearings in last night (UPS guy delivered at 8:15PM!). These are the tapered roller bearings to replace the stock ball bearings.

Well I'm slightly dissapointed and I'm looking for opinions.
The inner bearings are perfect. However, the outer bearings... well I'm not sure. First of all they are different brands

. They look the same size (I don't have a micrometer). Second of all one of them has already been opened, has some light oil applied to it and has what appears to be light rust on it :mad: (on a non bearing surface... the one you tap on to drive the the race out of the hub).
So my question is should I just go ahead and install these and everything will be OK... or should I contact the seller and request a replacement? How typical is this? :confused:
Thanks!