Originally Posted by Moses2564
4 cylinder Jeeps have 4.11's.
All Jeeps except the Rubicon have a mix of 4.10 and 4.11 at the front and rear axles when they have that ratio. This is because of the different sizes of ring gears inside the front Dana 30 and rear Dana 35c or Dana 44 axles. Just like 3.54 and 3.55, 3.73 and 3.74, and 4.10 and 4.11... there is always that .01 difference between the non-Rubicon Wrangler's front and rear axles.
The Rubicon has matching Dana 44 axles front and rear so its front and rear ratios match exactly. I don't recall if that is 4.10 or 4.11 but for all intents and purposes, it doesn't matter because they are the same ratio in effect.