My JK has DANA30 front and DANA44 rear
it has 6sp manual and 3.73 gear ratio
open locker front and rear


My current plan of gear/locker upgrade is

5.13 gear ratio

Front: TrueTrac Gear Type Limited Slip Differential
Reason: front DANA30 axle is weak, Do not want to put too much stress on it
Florida is flat
Seems it has good reputation for silent ride on road


Rear: OX locker
Reason: Realy locks 100%
Simple design, no electrical cable or air hose required

Any suggestion/correction on my plan?

 

How big of a tire are you planning on running? 4.88 gear will run 35's all day with no problem and will be WAY too steep for 33's (I am running 33's right now with 4.88's and I need a bigger tire).

If you are planning on running 35's, I would gusset D30 and replace the axles with cromoly or RCV's (I went RCV's). if you are planning on running >35's, plan on upgrading your front to a D44 of you plan on wheeling much.

I love my ARB Air lockers with the onboard air kit, it is more expensive, but it is the best setup in my opinion.

 

Forgot to mention my tire is GoodYear Kevlar, (315 75 R16, i.e. 35x12.5x16)

 

The TT is great choice for the front. I personally would not waste money on alloys or rcv's or a selectable in a 30, since all you do is make those tiny d30 5.13's the fuse.

The majority of Ox reviews I see are negative. Slow to lock/unlock, and too many cable issues for me to trust them. Assuming you get the perfect install, and you don't mind crawling underneath on the trail to fix your cable, you should like it.

Down south, you might just consider a Detroit in the rear. If you want a selectable, ARB is still the brand to beat. And depending on your wheeling habits, a TT in the rear may be a great choice also.

 

The size of the tire will make the difference with the D30. You definitely want to put C Gussets in with 35's. I think 4.88's with a manual will be a better gear choice (in the D30, the 5.13 is TINY)

If you plan on wheeling, I would upgrade your axles as well, or plan on carrying a spare if you lock your fronts.

I have heard mix messages about the OX, but EVERYONE says it must be adjusted just right for it to function correctly.