It seems to me it's usually the other way around. A Locker in the back and the TruTrac in the front makes for better
"all-around" driving. Running a Locker in the front is good, (like Rick said, you'll be amazed!!) but if you plan on driving it on the highway a set of Lock-Out hubs would make it a nicer ride.
For a Trail Rig (with Rock climbing in mind) beefier Diffs, i.e., Dana 44's would be a something to think about for the future. Also, depending on what size tires you plan on running, Lower Gears will take the strain off the engine/Tranny. Of course this also ADDS stress to the axles, etc... That's why I added that link to give ya some idea of the progression this takes once ya start changing things. As "I" said before, I'm NOT trying to talk ya out of this, just adding my opinion. That's why it's better to take you time and consider all the options, and configurations, before spending the
$$$ Good Luck with the Jeep and there will always be lots of fellow Jeepers here to help ya.
BE SAFE in the Sandbox (one Combat Vet to another). Make
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Tattoo
You'll NEVER know what your Limit is, 'til you pass it