Replying to rear lockers

this is to anyone who knows alot about trucks or drivetrains in general, my truck is 4x4 and has open diff's on both the dana44 and 12-bolt, im considering getting a spool infront to permanently lock those gears and a rear locker, would this be a good setup, what is the smoothest/most reliable automatic locker available,
____________________________________________________________

better to wrap yourself in the constitution and burn the flag, than wrap yourself in the flag and burn the constitution
witness/activist in the great spamming of 2004