Outer Limits 4x4 Board

I want to put a ARB rear locker in my paj but i'm not sure of the model ?? Its has drums brakes and 4.625 gears, also I don't know if I can put some crawlers gears (don't have super select) my transfer case is similar to the Challenger but it has Neutral position, I think it's called Easy select?? I really appreciated your help. Thanks

OK, my 2c...

ARB does have a locker for the 3.0 rear diff. Your diff ratio doesn't matter, because you're only replacing the hemisphere, which bolts to the crownwheel.

Similarly, I believe the 2.85 gears will fit the easy select transfer - if there's any available.