Hi,

I have a F150 2019 XLT. My truck was not coming with factory rear locking differential. I would like to upgrade my truck and install one. One option is to install original ford locking electric differential. My question is Can I expect the wiring harness to connect the electrical differential locker in the cab after changing dash button. I'm asking this question because my truck was not coming with trailer brake controller and I just had to buy ford controller and all wires were already present.

Thank you for your help.

 

Probably not

 

My impression is that the wires aren't there.

I think they are for the trailer brake controller, because it's a common aftermarket upgrade that the engineers at Ford anticipate (somewhat). Not so much with an aftermarket locker.

I went through the same thing with my truck and was hoping to see a harness/connector by the differential, but I don't see one.

Also, in the case of my added trailer brake controller, I only had to add a fuse to the fusebox but the pins were there. IIRC, there weren't even pins in the spot where a e-locker fuse would normally go.

 

Having had 3 trucks with the E locker I think you would be better off with a limited slip diff. and not have to worry about the wiring.

 

It would appear that the Transfer case Control Module is present in both the 2wd and 4wd models with the E locker as the module is needed for E locker operation. Trucks with no E locker probably don't come with this module but, they may be equipped with the connection for the module and that is probably the place to start. It may be worth your while to look a little closer for the wire to the diff for the locker. It's brown with violet stripe, according to the diagram if it's there. Anyway, the module is located near the passenger kick panel if it is equipped.

 

I'd definitely go with a limited slip unless your primary use is rock crawling.

The E-locker is useless in 99.9% of circumstances. Can't use it on pavement, disables at 25 mph, doesn't provide good traction when turning, etc.

 

I can’t speak for the OP, but ideally the e-locker is exactly what I’d have.

I’m interested in it for hills on loose soil and low or high desert trails, and an occasional snowy trail. I’m not interested in something that will activate without my prompting it, like a true trac. Clutch type limited slips are great for sports cars on pavement but they’re useless if one wheel has zero traction.

 

My truck will spin the tires at 30+mph with a gentle prod of the throttle on dry pavement. Rarely do I go under 25 mph in a straight line on slippery surfaces. I doubt many others do either unless they are extreme off road drivers or over 90 years old. Even on ice or snow, it's better to have a differential that will lock and unlock each tire vs. staying locked.

I want something that works all the time regardless of terrain or speed. There's a reason why the other existed for 60+ years and we just now switched to an inferior design. Much like everything else in these modern vehicles, it's about dumbing down the product for idiots.

 

That's cool. Sounds like this thread isn't for you then.

 

True...I'm not an idiot that wants a dumbed down product, nor am I over 90 years old, nor do I go under 25 mph even off road. I will see my way to the under 90 yo, over 25 mph door.