I have a 2 dr X with 35's..my question is this...i want 4.88's but is that all i need?? or am i going to have to change the carrier cases? im doing it myself with the help of a wrenching buddy..

 

You'll need to provide more info, like tranny?? type of driving, etc.

 

I understand 3.21's have a different carrier than the 3.73's or 4.10's. If so, you will need to upgrade carrier only if you have 3.21's.

SV

 

you need install kits to they fit your carriers

 

its a manual....not sure on what type of gears i got tho...either 321 or 373 ...def not 410...that sucks if i have to change the case

 

From my experience and what I've read, you shouldn't need a new carrier in the rear, but you may or may not need one for the front. Seems Jeep changed carriers at some time, and it doesn't seem to be related to gear ratio (i.e. carrier breaks).

I needed a new carrier for my 3.21 geared D30. Some w/ 3.21's didn't. Go figure.

 

Not the case, the differential carrier (holds the spider gears). This gives you good excuse to drop a locker or LS carrier in the axle!

SV