Personally, I think a locker in a front 10 bolt running 35" tires is really pushing (beyond?) the limits of the axle. If you really go places and use it in situations where you need a front locker, I don't think your 10 bolt knuckle joints will last. You'll really need to baby it, especially when the wheels are turned. Just my opinion.
Other than that, most any of the inserts will probably last longer than the axle (10 bolt front running 35s) and they are all easy/cheap to install. As far as which one is best, someone else will have to answer that since I don't know. Good luck.
Russ
85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked
Some day: 4" lift, 44" tires, massive cutting, shorter wb and rear overhang.