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Thread: JKU Diff Gears
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Old 03-09-2020
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Quote:
Originally Posted by I'mJeepedAs View Post
Thanks for advice guys, I think the stock gears in my jk are 3.21 and a change to 4.11 would give the car better acceleration. Only down side I guess is what rpm I'll be sitting at when driving on the motorway. A tune would be better to go with first just wanted to see what other have experienced with there setups. I have a Manual Diesel does anyone else with a Manual Diesel run 4.11?
I've got a 2008 JKU which I swapped out the 3.21s for 4.11s. It's night and day and what the CRD manuals should have all come with that ratio out of the box. In fact the 2007 did have that. I managed to snag a set from someone quite a few years back.

4.11 kits for the d30 are available, but you'll also need a carrier for a 3.27 up as the 3.21 is different.
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