Pick any two: Economical, Predictable, Easy on Tires & Axles
(you don't get all three)
Selectable Locker:
* 100% predictable
* Safest on axles if you know how to use it
* May not work on trail if the air lines, or air pump fails
Auto Locker:
* Cheaper than the selectable locker
* Locks up when you need it
* Usually (key word) unlocks when you don't need it
* Can unlock / lock in slick road conditions causing some level of unpredictability (this is easy for some people to get around, and harder for others)
* Makes rackety snap ping sounds in tight (parking lot) turns
* Get a spare set of shear pins - you might need them on-trail
Spool:
* Works all the time
* You can loose control in slick conditions if you have a lead foot, but it's very predictable, and easy to avoid this behavior. And, easy to power slide if you're into that kind of thing.
* Will eat tires quicker (but still much slower than a full sized truck with open diffs on the same tires. Weight advantage FTW), and passably axles if you have a lead foot
* Will buck & squeal tires in more turns than auto locker
* Solid, and the most reliable (yeah, I said it) of all the lockers
* Cheap
I sure wish Aussie lockers made a locker for Suzuki. I never really notice them in my toy axles (this is a good thing, it means they're locked or unlocked when they're supposed to be, and don't make noises in turns).
