Re gearing a Jeep (who is the go to shop for swapping gearing in axles)?

[USMC88-93]

I didn't even ask, what jeep. What size gears you going with?

More of a preliminary what if I do kind of thing I will call Crawlertech and discuss whether its worth it for my purposes.

2005 Unlimited Rubicon 6 speed manual with NSG-370 transmission and NV241 transfer case. 33 inch tires.

Has 4.11 from factory thinking about 4.56...................Towing in the mountains. In truth there is nothing "wrong" with it as is here in town it runs around fine here in town. All gears useful noo crazy RPM. As though the way they set it up from factory in the Rubicon presumed 33 inch tires. But towing something up and over through Esienhower the change from 4.11 to 4.56 might well be worth it. I can not see 4.88 as I will not be going to 35 inch tires.

Jeep is currently at ROKMEN Offroad getting the spring perches relocated but I am not sure of their gearing experience. I know they do their own rigs and others but it is not their advertized specialty.