I'm running 35 spline Nitro rear axle shafts with the OX locker. Non-Rubi 44 rear. Running 35s right now but have 37s sitting in the garage. Front is 5.13s and 35 spline RCVs.
Honestly no complaints with the set up. I did the air actuation since I already had the dominion OBA. The design on the OX lockers is what sold me, and their actuation is extremely smooth. Another thing that's great is their customer service, very knowledgable staff that answered all the questions I had.
I went back and forth on that decision for awhile but ultimately went with the 5.13s, both in anticipation for the 37s and for what's going to come after the 37s. If I knew I was going to stay in the 35-37 range I might would have stayed with the 4.88s but really, I'm happy with the 5.13s. I also didn't want to get a couple months on it and realize I should have gone lower
I decided to go with 4.88 right now but that is because I have 33s and a D30 right now. Regearing it will get a Detroit up front, OX rear with 35 spline Nitro shafts. Already have 4043 Chromemoly shafts in the 30.
The future is 36.8x14 Iroks on beadlocks. Then when the 30 give way or I have the money saved RJ44. And at that time 5.38s in anticipation of Swamper LTB 40x16... Just not sure how I should build that RJ44.