Hello! I recently purchased a 2018 STX 4x4 with a 3.55 rear end that is open and my question is would it be possible to "turn it into" an electronic locking differential?

To be completely honest I didn't know what the heck an open or locking differential was when I bought the truck. I just knew that in the snow I'd want 4x4, especially if I got stuck. And then today I went down an "F150 forum rabbit hole" looking into the new F150 shocks (or something) and came out realizing that I have an open differential with my 4X4.. lol..so I don't have true 4x4 and most trucks with 4x4 have electronic locking differentials.

Anyways, I love the truck (its my first F150) and I'm super happy with my purchase! Just thinking down the road for the one or two times I may get stuck and 4x4 doesn't cut it.

 

are you sure you don't have locking diff? i have a 2018 STX 4x4 with a 3.55 rear and i didn't think i had it either.. until someone explained the **** .. then i looked up my build sheet and saw i had it

 

Y'all will fit in great here.

40 large for a truck and don't know what they got!

Just jokin.........well, kinda.


Pecked out on my iPhone.

 

 

It's an option on the STX. Here is a snip of my window sticker for reference.

 

Yep! Mine says 3.55 Ratio Regular Axle --- No Charge where it would say electronic locking 3.55 etc etc with a $470 charge.

How you like your STX? I'm glad I chose that model!

 

I agree with Joe Tom - probably more hassle than it's worth. You'd be better off researching one of the many LSD or locker aftermarket options. Whichever way you go, it's going to be costly!

 

Love the new truck. Haven't had the need to use the locker yet. I used it all the time on my 2015 2wd.

 

That ELock is the cats meow. Especially if you have to back out of a hole. In many cases it's better than the 4x4 unless you have the locking front.



Pecked out on my iPhone.