Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum > 3.21 to 4.88. Differential carrier?

Join Wrangler Forum Today

Thread: 3.21 to 4.88. Differential carrier? Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
11-13-2013 01:23 PM
jadmt 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.
11-13-2013 12:53 PM
JeepHerz 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.
11-13-2013 12:06 PM
DirtyTeddy So it's not any bigger but "faster" ? How do I know the difference?
11-13-2013 11:53 AM
jklarry front has a d30 and yes you need to change carriers.
11-13-2013 11:39 AM
spinlock The D35 front diff on Saharas and Sports does require the high speed carrier for anything above 3.21.
11-13-2013 07:35 AM
jadmt in the front you do.
11-13-2013 06:50 AM
3.21 to 4.88. Differential carrier?

would I need a new carrier?

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 08:16 PM.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC