I'm upgrading the shafts and re gearing and putting a locker in the front so with that being said do I still need a carrier for the front. Sorry if dumb question first time doing gears

 

there are some axles with a factory dana 30 carrier that will work. they exist in axles that are factory 3.73+ you can find one at a junk yard. but since you have a 4.0 you will have to contact RWKHaussupply and order a new one for $70.

here's the tech that explains why
http://www.differentials.com/technic...carrier-breaks

 

Ok awesome. So I'm gonna need new ones for the front and rear?

 

rear is different. 8.25 does not have a carrier break

 

Ok awesome. I appreciate it

 

Depends on what gears you have now and what rear axle.