jumping

I traded in my 2010 Genesis V8 with Tech Package in for a 2012 non R-Spec 5.0 on Friday. I don't have any logical reasons for the trade, but it's nice to get one of the few non R-Spec 5.0s, especially since there won't be any more next year. Here are my very early impressions. Folding side...

:confused:Just bought from lease 09 V-6 Genesis. Been complaining about the whining differential noise for over a year. Normal, I was told. Glad to hear some possible solutions. New problem. Car is kind of jumping when coasting/slightly accelerating. Most noticeable between 60-75mph. Slight at...