replacing 3.21's
Thread Starter
JK Freak
Joined: Mar 2008
Posts: 757
Likes: 2
From: Coastal, GA
replacing 3.21's
I did a quick search, and didn't find what I wanted. 
What do I need to go from a 3.21 to a factory 4.10 on an '07 "X".
I have the the 4.10 D30 and D44 ring and pinion.
Do I need a carrier for the front ... or rear? Install kits? Be specific.
Please help, or guide me.
What do I need to go from a 3.21 to a factory 4.10 on an '07 "X".
I have the the 4.10 D30 and D44 ring and pinion.
Do I need a carrier for the front ... or rear? Install kits? Be specific.
Please help, or guide me.
JK Jedi
Joined: Apr 2008
Posts: 5,168
Likes: 1
From: texarkana,tx
you need the front carrier, or a front locker. how many miles are on your jeep? I would at least replace the pinion bearings myself. Get a overhaul kit from northridge4x4 and replace all the bearings while you are in. might as well.
Thread Starter
JK Freak
Joined: Mar 2008
Posts: 757
Likes: 2
From: Coastal, GA
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Joined: Aug 2006
Posts: 5,892
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What do I need to go from a 3.21 to a factory 4.10 on an '07 "X".
I have the the 4.10 D30 and D44 ring and pinion.
I have the the 4.10 D30 and D44 ring and pinion.
For the front you will need a Overhual kit and a Carrier.
David