I have dana 30 / dana 44.

The Dana 44 is 3.73 and locked (came that way - similar to the Rubicon lock). I will emphasize that this is NOT a no-slip lock but an acrualt diff lock.

On the dana 30 in the fronts I put THIS arb air locker.
As you can see it's a 27 Spline Front Dana 30 with 3.73 and Numerically Higher Gear Ratio.

The question is - if I want to raise the ratio to 4.56, and get THESE will my ARB lock still fit? (does it even matter what ring and pinion set I put in there??)
Same question goes to the factory locked dana 44. If I change to THIS
will the factory lock still fit and operate?

Thanks for your help.

 

it should fit and work with your lock, you are only changing the ratio(ring a pinion) which means it should not affect the diff internals, so the diff lock should not be affected

 

it will work. my only suggestion is the go with the 4.88's. i say this becasue everytime i regear or get a bigger tire i wish i had gone a little more. so if you just get the 4.88 which is the biggest you can with the d30 i think you will be happier. unless you drive on road only or are trying to get better mileage(which is a lost cause anyway) go bigger!

 

I use this car on a day to day basis...
How would my fuel consumption look with 4.88??

 

Auto or 6 sp?

 

Auto.

Unfortunately they don't bring manuals to Israel... (nor do they bring in Rubicons... but that's a shole other story)

 

If it helps you at all..very good responses so far... here it goes.
I have the 2 door with auto. I am running 37" KM2's and 5.13 superior gears.
The rig drives great, I have only bridges and no mountains or hills in Florida so I can not really tell you what this would mean in those environments. I do wheel, mostly mud and sand and trails. again I have had no issue at all. Also do a lot of highway driving and runs great.

as for fuel consumption, the bigger tires gets you farther, the extra weight takes more gas, and taller gears give more power at lower rpms (net loss in MPG or kpl) My experience.... I went from 18.5 average to 15.5 average MPG. (speedo corrected with hypertech)

What size tires? Any limit on the size over there? And would you ever need to tow? These are the main things that I didn't see mentioned that could affect what you might be happy with.

As the above responder said, you would probably be very happy with 4.88's and don't forget front and rear have to have the same gear ratio. And ring and pinion are all the same with different teeth counts / ratios so all of your axle internals would be happy.

Have fun.