Ok guys got a quick question giving up the idea of a true locker rear end apparently can't take the torque of the 6.7 so my next question without going to a mechanical locker or clutch plates has anyone installed this kit and how does it work of course I'd only use it with 4 wheel drive in deep snow and not go 65 miles an hour thanks again

 

The rear locker in my 2015 is a true locker. So I'm not sure what you are asking. The only reason it unlocks at speed is the electronics and safety nannies.
The kit you are asking about disables the nannies.
Clutch plates are not lockers. Normally they are slip diffs.
I have installed dozens of lockers. I currently run ARB's.
I also live in the land of the ice and snow. I would not run my lockers on the highway or on the street when its icy. Even in deep snow I usually unlock the front and lock and unlock the rear to make a turn.
The Ford e locker is decent. Its a bit slow to engage but so is an ARB. But once the pins are locked you have a spool. It is a strong design and is a true mechanical locker, although EM engaged. But EM is the way things are going. My ARB's may end up as an obsolete design. But I will never admit that.
The u joints will usually let go before the locker, in my experience!

 

yes i have fords e locker 20016 f 350 but this kit

SPE 6.7 Full Lock Diff Kit

defeats the 20 mph turn off until you unlock it just hate open diff what i have now useless compared too my old 2009 f 350 had installed Eaton true locker was awesome in snow however it is not strong enough for 15-16 6.7 power increase was told by Eaton engineer on phone :-( . Now this isn't the best idea ,but its better then what i have now 860 ft-lbs of power going to one wheel in the rear useless in snow and i drive a service road to one job 20 mph don't cut it for 2 miles

 

If you have enough traction to maintain 20 mph why do you need the rear locked? There's no benefit to having one engaged at that kind of speed. Just use 4wd and go. Seems to me like this kit is just a way to get people to spend money on something that really won't have much effect in how the truck performs. I had both Detroits and full spools in my Jeep. Only ever needed traction like that going slow. Just my .02.

 

thanks but i liked to here from someone who put one in