Limited Slip
Posting Guru
Joined: Dec 2017
Posts: 1,441
Likes: 8
Detroit Truetrac
Detroit Locker
Yukon Grizzly Locker
Yukon Zip air locker
ARB air locker
OEM E locker
All fit the 10.5. I don't know of anyone running anything else aftermarket with good things to say. Also note, the diesels will have the Dana rear axle. I don't know if anything aftermarket is available for that, so you're stuck with what you get. The Dana has a drain plug on it's cover, and looks Dana-ish. Pretty easy to spot.
Detroit Locker
Yukon Grizzly Locker
Yukon Zip air locker
ARB air locker
OEM E locker
All fit the 10.5. I don't know of anyone running anything else aftermarket with good things to say. Also note, the diesels will have the Dana rear axle. I don't know if anything aftermarket is available for that, so you're stuck with what you get. The Dana has a drain plug on it's cover, and looks Dana-ish. Pretty easy to spot.
Elder User
Joined: Aug 2011
Posts: 858
Likes: 2
From: Chico,CA.
Forget the Detroit Locker. They are noisy and harsh.
The true-track works great. Smooth and seamless.
I have an FX4 (so its an E-locker) but if I were daily driving in snow I would want the LSD (true-track) instead of the E-Locker.
If I were plowing snow I would want the E-Locker.
The true-track works great. Smooth and seamless.
I have an FX4 (so its an E-locker) but if I were daily driving in snow I would want the LSD (true-track) instead of the E-Locker.
If I were plowing snow I would want the E-Locker.
I have a pair of 150/4x4's. the '13 has an e-lock and the '05 has a TT. I had it put in when re-gearing a couple years ago. For 99% I'd take the TT, no question.
Posting Guru
Joined: Dec 2017
Posts: 1,441
Likes: 8
I agree. The new Detroit's are tame.
The only downside I can see, is increased 4wd use in the winter to make them easy to drive. So that's why I usually only recommend an autolocker in 1 axle, not both. Doesn't matter which axle as far as I'm concerned. But one axle needs to be friendly in the slush and ice.
I used to think Detroit Rear, Truetrac or open front was king.
But now i'm convinced, E-locker rear, Detroit front is far better, and more well balanced.
The only downside I can see, is increased 4wd use in the winter to make them easy to drive. So that's why I usually only recommend an autolocker in 1 axle, not both. Doesn't matter which axle as far as I'm concerned. But one axle needs to be friendly in the slush and ice.
I used to think Detroit Rear, Truetrac or open front was king.
But now i'm convinced, E-locker rear, Detroit front is far better, and more well balanced.
Logistics Pro
Joined: May 2017
Posts: 3,523
Likes: 483
From: Southern OH
If I could only have one Detroit locker It would be in the rear. I would put a Turetrac in the front or leave it open if it was driven on the street in the snow a lot. If it was used off road a lot then a Detroit front also. In my opinion a selectable locker doesn't make much sense in the rear of a street vehicle because it is either open or fully locked neither of which is ideal for street use, I would rather have a Truetrac in the rear than a selectable locker.
New User
Joined: Aug 2012
Posts: 6
Likes: 0
New Axle ELD
The E-Locker used in all newer Ford is simply a two wire solenoid. All of the fancy operation quoted from the Ford Service manual earlier in this thread is simply stating the strategy the BCM uses to control the ELD. I was a Ford Service engineer for 5 years and I am planning on doing a whole axle swap on my 97 F250 so I can have rear disc brakes and the ELD. All that is needed is a toggle switch.
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Logistics Pro
Joined: May 2017
Posts: 3,523
Likes: 483
From: Southern OH
The E-Locker used in all newer Ford is simply a two wire solenoid. All of the fancy operation quoted from the Ford Service manual earlier in this thread is simply stating the strategy the BCM uses to control the ELD. I was a Ford Service engineer for 5 years and I am planning on doing a whole axle swap on my 97 F250 so I can have rear disc brakes and the ELD. All that is needed is a toggle switch.
Posting Guru
Joined: Dec 2017
Posts: 1,441
Likes: 8
If I could only have one Detroit locker It would be in the rear. I would put a Turetrac in the front or leave it open if it was driven on the street in the snow a lot. If it was used off road a lot then a Detroit front also. In my opinion a selectable locker doesn't make much sense in the rear of a street vehicle because it is either open or fully locked neither of which is ideal for street use, I would rather have a Truetrac in the rear than a selectable locker.
My Mustang has an LSD, it makes more sense in that car. Even then, it's a bit of work to keep the LSD loose, but grippy. Too tight, and it's understeer city.
Logistics Pro
Joined: May 2017
Posts: 3,523
Likes: 483
From: Southern OH
No way, an open diff sucks in the rear of a truck, especially behind a diesel with a lot of torque.
Laughing Gas
Joined: Feb 2004
Posts: 831
Likes: 16
From: sacramento
I would get a factory e locker put in or swap a whole used axle might be more economical.
I am not a fan of LSD, they just don't do much especially on a heavy high torque vehicle, in my sports car sure I will take the LSD.
I am not a fan of LSD, they just don't do much especially on a heavy high torque vehicle, in my sports car sure I will take the LSD.
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Of the listed diff's available (other than the factory type E Locker), I am a fan of the Truetrac. Used several in various applications.
The E Locker in my truck has worked very well in the recent snow and ice. I live on the Blue Ridge Mountain and have a pretty steep climb to get out of my driveway. I just turn the **** to 4Hi and creep up the hill without issue. No need for it once its up to speed.
For daily driving in rain/snow/ice I would prefer a Torsen or a pure clutch type instead of a locker. Seamless operation in varying conditions with few of the problems you see with lockers.
What type LSD is the factory unit (non E Locker)? I have never bothered to investigate.
The E Locker in my truck has worked very well in the recent snow and ice. I live on the Blue Ridge Mountain and have a pretty steep climb to get out of my driveway. I just turn the **** to 4Hi and creep up the hill without issue. No need for it once its up to speed.
For daily driving in rain/snow/ice I would prefer a Torsen or a pure clutch type instead of a locker. Seamless operation in varying conditions with few of the problems you see with lockers.
What type LSD is the factory unit (non E Locker)? I have never bothered to investigate.