This is what I wanted to know. Just if any other models had the ELRD switch.

 

On the 2012's 2wd and 4wd models they are replacing a lot of the limited slip rear with e locker. This is what u get if u have a 2wd with e locker

 

On all 2WD models?

 

Not all models, open diff is standard of course. Most trucks that would have come with a limited slip in the past will get a elocker for 2012 but u can still opt for a limited slip but if I remember right it is not cheap to ad the ls. The hd payload package has the limited slip as standard and you can't get the elocker with that