Honestly, I got a rebuild from the local AutoZone and had zero issues with it. http://www.autozone.com/drivetrain/cv-axle/duralast-gold-cv-axle/850551_0_0_78656 It was cheap after the core return, under 100 bucks if I remember correctly. I had zero vibrations or issues from it and it had a lifetime ...

40k miles and 3 years on Autozone Duralast axle and they're fine. YMMV