Replaced hdd is vibrating little more

I was using 2 500gb hdd. both were segate st3500418as. but recently 1of them got some problem and replaced by a certified repaired hdd from segate. and that model no is st500dm002. but this st500dm002 is vibrating more than st3500418as. other than vibrating little more the st500dm002 is not getting any other problem. i have also checkd smart long test and it is passed.

now im going to sell any one of them. so which one i should sell??? st500dm002 have another 1yr of warrenty where st3500418as have 1mnth of warrenty remained. please guys help me. im worried of that little more vibration.