far as i was aware the rubicon had d44 diffs not a d44 and 35 up front and 4.11's and the 4:1 transfer case
the sport would be the weaker system i would think in comparision going 4.88's nice but why go that far n not use the lokkas etc the diff covers look standard not the "arb special" ones the fotos show that yeah a sport with 4.88 diff ratios is better than the 4.11's but still dont think ya would go and BUY a "sport" decal for ya "rubicon" touchup paint is like $2 isnt it ? looks good but either way