2011 the e-locker came available standard, us 2009-2010 guys don't have it, was only available on the raptor in 2010.. but someone figured out if you put a raptor tccm and the raptor 4wd nob you accomplish locking the diff in 2h for the 2009-2010 guys.
https://www.f150forum.com/f38/e-lock...ide-mod-83937/

Okay i will back up a little on my comment. i would not recommend driving around every day with the locker locked up as a normal on dry pavement. It would wear out parts... Agreed. Although my opinion is that it would take a very long time and a lot of miles to do so.

But if you have it locked and end up in a parking lot and are turning around or anything else your not going to hurt a damn thing being on dry pavement.

I've seen numerous people blow out parts on their rigs on the trail which is usually in a situation where traction was greater, ie rock crawling. This same concept applies to the street, rubber against dry road creates a ton of friction which will show you the weak link.

Is it going to hurt anything if done on accident hopefully not but it could happen the first time you do it.

A customer of mine grenaded his transfer case from the wheel-hop when his e-locker was engaged. FOMOCO replaced it under warranty, but it goes to show that there are some serious forces at work back there.

The advantage that the e-locker has over a factory LS is that there are no clutches to wear out, and since it kicks out at 25mph it won't get the rear end loose on ice like the LS.

About the only disadvantage is that you have to engage it.

I understand **** could break but I don't think turning on pavement is going to break anything... When it happens you hear the inner tire scraping... That to me tells me that that is where the force is being released. I know it's not the best thing for it but do I think it's going to break my diff? No

Maybe not that one time but it can, and is it going to be your diff? Nope probably not, more like your axle at the splines. I've been around lockers and offloading enough to know it happens, sure the tire chirp and hop is there but that is just sending shock waves of stress throughout the driveline.

Bottom line is I don't care really, it's not my truck. I know how and when to use 4wd and lockers. This is a reason I will never buy a used 4wd, you never really know what the person before you did with it.