congrats. I am assuming you have a JK. The advantage of a rubicon over a sport is the the push button locking diffs in low range and a 4:1 transfer case low range for rock crawling. Also the rubi comes with KM2 tires usually. The wifes DD is a 2012 sport with the 6 speed. The low xfer case ratio was a turn off to us, we prefered the 2.71 :1 for higer wheel speeds in mud. The rubi should have 4.10 rears, whereas her sport has 3.73 diffs. I suggest you pull the doors off and head to the Bantam Jeep Festival this june!