Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.
Guessing that was that a typo? Lots of guys here have lockers up front (myself included).If you want a SAS you should try and find a early ford bronco with a Dana 44, they are close the the same width as your ranger axles. You could also go with a full width Dana44 or even a Dana 60, but the tires would stick out like crazy and most likely not street leagal where you are.
As for lockers you cant put them in the front axle and they make it so both tires spin not just one.