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Old 01-22-2018, 12:09 PM
uh60
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Limited Slip

Does anybody know if someone makes an aftermarket limited slip for the 2017 10.5 Sterling axle? I looked at Eaton Detroit Trutrac but on their website it only went to 2012. Are the rear axles the same? Reason I'm asking is I have looked at a couple of used 2017s but they don't have the E-locker. And I would prefer a manual shift 4x4 instead of ESOF. Its very hard to find one that is still manual shift with an E-locker. Thanks.
 
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Old 01-22-2018, 02:09 PM
Fr8dog69
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Call your local dealer and see if a 2016 factory limited slip case will work. Otherwise, you may have to wait for the aftermarket to catch up.
 
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Old 01-22-2018, 02:21 PM
Buliwyf
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I'm pretty sure that Truetrac will work. I don't know of anything that has changed since then. Any 35 spline Truetrac should be GTG. Call Randy's. I'll bet it's just a bad website list.

You can also try a Detroit Locker, or Yukon Locker in the rear.
 
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Old 01-22-2018, 02:46 PM
uh60
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Thanks for the heads up. I'll make some phone calls and see. I want a limited slip over a fulltime locker. Fulltime lockers suck in ice and snow.
 
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Old 01-22-2018, 02:48 PM
uh60
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Looking at the Ford website I see the 2018 F250s with the 6.2 only come with an E-locker with the 4:30 gears. But you can get a limited slip with the 3:73. Are the axles different between the 6.2 and 6.7 PS?
 
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Old 01-22-2018, 02:51 PM
uh60
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Reason I'm asking is I was looking at 6.7 PS. I have looked at the 6.2s as well. And may still go that way still just really leaning towards a 6.7. Thanks again.
 
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Old 01-22-2018, 02:54 PM
K A M
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The e locker on the trucks you pull out the **** to activate it when you want it locked and it's only in LOCK up to 20 mph then it disengages. It's not a full time locker
 
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Old 01-22-2018, 03:47 PM
uh60
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I'm tracking on the E-locker, I was replying to Buliwfy about the Detroit Locker which is a fulltime locker.
 
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Old 01-22-2018, 04:19 PM
Fr8dog69
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Originally Posted by uh60 View Post
I'm tracking on the E-locker, I was replying to Buliwfy about the Detroit Locker which is a fulltime locker.
Iíd go with a factory limited slip case which will be rebuildable and probably the most economical option? AFAIK, I havenít read where the axles are any different on the F-250 Sterling rear diff. between a 6.2 vs 6.7. The optional M275 on the F-250 is a whole different ball of wax.
 
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Old 01-22-2018, 05:36 PM
P.Bronner
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Originally Posted by Buliwyf View Post
I'm pretty sure that Truetrac will work. I don't know of anything that has changed since then. Any 35 spline Truetrac should be GTG. Call Randy's. I'll bet it's just a bad website list.

You can also try a Detroit Locker, or Yukon Locker in the rear.
Agreed, I don't know of any changes to the rear axle. Get the True-Track, they work great. Smooth and quiet, no chatter/clunk.
 
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Old 01-22-2018, 06:47 PM
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Originally Posted by uh60 View Post
Thanks for the heads up. I'll make some phone calls and see. I want a limited slip over a fulltime locker. Fulltime lockers suck in ice and snow.
I disagree with that, I think they work great if drive properly, my auto lockers handle about the same in the snow as my factory limited slip does but they do much better in a tough situation. If you don't want an auto locker then a Truetrac is a great option. Stay away from the factory limited slip, they aren't that great. I have heard that the newer Ford 10.5 has 37 spline axles but I am not sure, you should pull one of your axles out and check before you order. You only have to take the 8 bolts out and the axle shaft comes right out, you don't even have to take the wheel off, but it would be a good idea to lift that side or pull up on a ramp or block so you don't lose any gear oil.
 
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Old 01-22-2018, 08:01 PM
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Originally Posted by uh60 View Post
Does anybody know if someone makes an aftermarket limited slip for the 2017 10.5 Sterling axle? I looked at Eaton Detroit Trutrac but on their website it only went to 2012. Are the rear axles the same? Reason I'm asking is I have looked at a couple of used 2017s but they don't have the E-locker. And I would prefer a manual shift 4x4 instead of ESOF. Its very hard to find one that is still manual shift with an E-locker. Thanks.
Interesting article showing the upgrade of a 10.5Ē sterling to a factory H.D. 3 pinion limited slip case.

Ford Sterling 10.5" Axle Rebuild - Four Wheeler Magazine
 
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Old 01-22-2018, 09:02 PM
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Originally Posted by P.Bronner View Post
Agreed, I don't know of any changes to the rear axle. Get the True-Track, they work great. Smooth and quiet, no chatter/clunk.
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.
 
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Old 01-22-2018, 10:06 PM
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Originally Posted by uh60 View Post
Looking at the Ford website I see the 2018 F250s with the 6.2 only come with an E-locker with the 4:30 gears. But you can get a limited slip with the 3:73. Are the axles different between the 6.2 and 6.7 PS?
Build and Price may be wrong, but you CAN buy 2018 F250s with a 6.2 and a 3.73 Locking rear.
 
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Old 01-23-2018, 05:28 AM
uh60
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Thanks for the replies
 
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