The Locker is a great choice...except for someone who can't handle some minor "clunking" noise the Locker might make when changing the forward/reverse direction. It's barely noticeable. The Dana that i ordered from Strange 20 yrs ago has a Locker. Zero regrets.

This section from the Owner's manual explains the "clunk". Not a good idea to shift from reverse to forward and immediately stomp on it. I'm sure that some 'experts' have done that only to cause damage to the unit because of the amount of backlash, and then claim that Lockers are no good.