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-   -   3.21 to 4.88. Differential carrier? (http://www.wranglerforum.com/f202/3-21-to-4-88-differential-carrier-387402.html)

DirtyTeddy 11-13-2013 06:50 AM

3.21 to 4.88. Differential carrier?
 
would I need a new carrier?

jadmt 11-13-2013 07:35 AM

in the front you do.

spinlock 11-13-2013 11:39 AM

The D35 front diff on Saharas and Sports does require the high speed carrier for anything above 3.21.

jklarry 11-13-2013 11:53 AM

front has a d30 and yes you need to change carriers.

DirtyTeddy 11-13-2013 12:06 PM

So it's not any bigger but "faster" ? How do I know the difference?

JeepHerz 11-13-2013 12:53 PM

Not sure what Spinlock meant by high speed carrier??? The new carrier is (slightly) bigger to accommodate the larger gears. Nothing to do with faster. They do look nearly identical but you will want a new carrier for sure.
Only necessary for 3.21s upfront.

jadmt 11-13-2013 01:23 PM

Dana 30 front axle carriers have a break at 3.54 anything under 3.54 ie the 3.21 has a different carrier then anything above 3.54 You need to be careful as older wranglers had low pinion diffs and they are not the same as the new high pinion diffs that we have on our jks.


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