I have a 2008 jeep rubicon with the factory 4.10s. I see the new 2013 rubis have 3.73 gears available. I have repowered my jeep to diesel, and am a little overgeared now. If any of you are regearing your rubicon and want to sell your 3.73s please let me know. Also please let me know if you know anyone who has some for sale. Thanks jk owners