That raises a question. Does this electronic limited slip work in 4-Lo? Alot of systems like this only work in 4-Hi. I do not know how Ford does things though.

 

Necropost but it works in all the modes on my '16 fx4 502a. Not sure what exactly it's doing besides making the wheels spin at the same rate, I only use it in fits and starts over extremely slick spots or if I get stuck, there is one parking lot here where if it hasn't rained in a while and then rains in a vicious torrent of water and when attempting to up the hill the oil from the asphalt makes it impossible to get up in 2hi without the locker, sometimes I forget and have to stop when I spin out a little, put it in 4lo and hit the locker and just barely push the throttle, works great. Turn the 4x4 and locker off at the top of the hill.

 

Unless you're rock crawling, you don't, can't, will not need a front locker.

Now, that said, something on the order of a TruTrac is an amazing addition to your off road arsenal. And yes, I've had one. Spectacular traction! No maintenance. No hazard to the drive train. No switches, compressors, or electronics. Transfers 40% of power to the spinning wheel.

When I get that kind of available cash, I'll be putting one in my 8.8" F150 front diff. (I almost can't wait!)

 

The two best options for a front traction aid on our trucks is some sort of LSD with a low bias ratio. Something like a 2:1 or 2.5:1 with a low or no pre load that will keep the front from locking but still adds extra traction when needed. Not sure how easy it would be to just use the raptor front torsion based Diff but that would probably be the way I would go. Heck you can probably buy it directly from ford.

 

The H2 did not have a front locker at least from the factory unless it was a special package or aftermarket.

 

Also here is a link for the E-locker
http://www.stage3motorsports.com/19660-010-2011-2016-F150-4WD-Eaton-Elocker-Electronic-Locking-Front-Differential-8-8-31-Spline-IFS.html

for guys trying to run this I would just use caution and a lot of self control. If you like running your truck all out and have big tires I definitely would consider the LSD type traction aids. However if you know your limits and are using this more as a tool it might not be a bad option. IMOP

 

My 96 bronco was ordered from the factory with lsd front and rear .. was a $350 option

 

You can buy it directly from Ford.
If the spline count matches it would swap right in. It's a bit more expensive than a True-Trac.

When I was doing research a couple of years ago no one could give me an accurate spline-count. But the general consensus was that 09-11 had 28-spline axles, 12-14 had 31-Spline axles. Raptor had 31-Spline axles of longer length and with larger U-Joints.

This was my plan back then. Now I realize that the electronic aids do enough for the type of off-roading I do, and the plan is to put mod money towards my Mustang.
When in Colorado with my family there was a hill that had alot of loose rocks, and all of us tried climbing it just to see. My brother in a rented Rubicon had to use the lockers. My Dad in his 4Runner had to ue his rear locker. (they each tried first without lockers and had to back down for another run) I just powered up it with my open Diffs and giant tires.


Fun side story form that same trip. Another Jeeper was up there and got the passenger side of his Jeep off the side of the trail, and the entire jeep was in danger of rolling down the mountain. So we hooked up our vehicles to it to pull it out safely. Tow strap to Between Dad's 4runner and the Jeep. And then a tow strap from my Truck to the 4runner.
When we went I dug deep into the throttle, pulled the jeep back onto the trail, but I couldn't see that. Both my dad and the Jeep hit their brakes and strarted yelling to stop, but I couldn't hear, so I just kept in the throttle. Dug 4 trenches about 3 feet in length under my tires dragging them forward.
With factory open diffs.
Wish I would've gotten some pictures or video.