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Old 10-07-2011, 02:33 PM
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Barnyard Barnyard is offline
Dodge Ram Forum Senior Member
Join Date: Oct 2009
Location: Katy, TX
Age: 42
Posts: 1,417
Gender: Male
Vehicle: 2011 Ram 1500
Trim Level: Sport
Color: Bright White
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 6
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Originally Posted by CHVYKLR View Post
you're right. that's new. the Ram site lets you select anti-spin differential with the 3.55s or 3.92s but it is removed if you select the 3.21s.
The 3.21's use a different housing and therefore cannot accept the LSD carrier (I looked into upgrading my 2009 w/ 3.21's). LSD is an option (and upgradable) for 3.55, 3.92 and 4.10 gears. I can't remember what it was going to cost though. I stopped listening when the bill got to more than $2500 to change my 3.21's over.
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