If you have the live axle setup then yes that should work fine. I don't want to just go off of what your sig says just in case.
Quick question though, why in the world would you want to switch from the live axle to the manual hubs? Besides just the classic oh its stronger and full proof?
Now don't get me wrong, im certainly not bashing the manual locking hubs but it would def depend on what my vehicle is used for before I decided to do the swap. I've had both and personally the live axle setup is quite good; if I had the vacuum system then I would switch over to the locking hubs for sure. But especially if your truck is a DD or one that isn't just offroad use only, then IMO id keep the live setup when dealing with this gen rangers setup.
There is nothing worse then having to get out in the mud or especially snow and lock them up manual, then unlock if the road isn't bad enough. My F250 is manual warn hubs and I can tell you that it gets old real fast. It was awesome when using my ranger in the snow to just flip the switch and be good to go especially when the live setup is worlds better and more reliable then the vacuum system.
Your still going to have the electronic switch in the cab and electric control for the transfer case so your not really gaining much in my opinion.
But good luck with whatever route you choose.