Cool. That’s true about the r180 diff failures. Plus if you’re staying on 33s, much less stressful on drivetrain parts. ARB, iirc, makes an air locker for the r180, the benefit besides traction is it replaces the stock carrier so you get stronger spider gears, and I’m pretty sure RCV sells upgraded front shafts too. I mean, you’re in this deep already, what’s a couple more parts.
I’m sure you’re already aware, but Nisstec carries all of the above plus a large catalogue of suspension parts, bumpers etc.