This is the grand daddy of all mods, I've been longing for this one since I first wheeled my JK,
Lesson learn't - should have bought a rubi to start with (when I bought my JK it was the only second hand JK for sale in OZ).
Finally after 130,000km my Jeep now has a 4.1 transfer case from a brand new Rubicon that someone upgraded to an atlas. Thankyou Ebay Christmas day 2011 and for no one else bidding on it.
I now have a final drive ratio in low 1st of 83.38 to 1