Which kit?

The Summit kit is what I installed on my son's car last year, it is a plain-wrap SSBC kit and installation went very smoothly. I had 1 technical question, don't even remember what it was now and when I called Summit, they referred me to SSBC, who answered my question.
As I said, that was a year ago and we've had no problems. Just make sure that you're running "green" bearings, because the adjusters for Timkens cannot be accomodated.
I have dealt with Summit many times and have always received excellent service, even when I've neede to return products.

I'm not sure the same can be said for an E-bay seller who is merely having product drop-shipped that he most likely knows little about; after all he says that he specializes in 'Bow Tie" restoration.