Im no expert, but I've been told that the SAS axle is heavier duty that the non-sas axles. I dont know which category the non-SAS Badlands falls into, just thinking out loud.
All Badlands, WIldtrak, First Edition, Heritage Edition, and any model with Squatch have the stronger M210 front diff and M220 rear diff.
All other models have M190 front diff and M220 rear diff.
All Broncos have the same rear diff M220. Only option is e-locker or not.