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TREMOR Front Diff performance

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Old May 25, 2020 | 09:43 AM
  #46  
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Originally Posted by ejb69
I’m not sure how it works. But it does seem to work. I pulled a few stumps out this weekend. Spun all 4 tires. I have had trucks in the past that would only spin one tire front and rear doing the same thing
Both rear tires should spin everytime the rear locker is engaged. Ive heard the front lsd on the Tremor being compared to what the Raptor has (Torsen).
 
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Old May 25, 2020 | 11:29 AM
  #47  
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The friction modifier requirement is proof that it is a clutch system.
 
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Old May 25, 2020 | 11:49 AM
  #48  
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If Ford's front LSD is anything like the Trac-Lok 8.8 in my GT500, it will slip when it needs to. I cant tell you how many times Ive launched HARD on no-prep (with suspension mods of course). Never ever did it just roast one tire and Ive also never had it hop or buck making turns meaning its slipping when it needs to. Id wager that the clutch packs arent sprung tight in the Tremor like they are in my GT500.

Of course, if y'all are serious about off-roading these Super Duties, an F250 with the Sterling 10.5 and front Dana 60 running OX lockers would be the way to do it.
 
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Old May 25, 2020 | 12:24 PM
  #49  
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Originally Posted by BillyE
The friction modifier requirement is proof that it is a clutch system.
Well then that gets rid of the claim that some reviewers have said of it being a Torsen lsd like the Raptor.
 
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Old May 25, 2020 | 12:37 PM
  #50  
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I'm still waiting for someone to open it up and take a picture of the carrier...that will certainly squash any doubt about what exactly is in the front differential.
 
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Old May 25, 2020 | 12:44 PM
  #51  
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Originally Posted by ForCal
Well then that gets rid of the claim that some reviewers have said of it being a Torsen lsd like the Raptor.
Right. Friction modifier causes excessive slip and can damage Torsen and similar.
 
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Old May 25, 2020 | 01:19 PM
  #52  
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Originally Posted by GNR22
I'm still waiting for someone to open it up and take a picture of the carrier...that will certainly squash any doubt about what exactly is in the front differential.
tfl had a video long time ago that said it was a clutch type ,per a ford rep. its not 100% but it might as well be 99.99%. add to that the use of friction modifier and you can call it 99.9999%. what more proof do you need
 
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Old May 25, 2020 | 01:35 PM
  #53  
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Originally Posted by willynilly
tfl had a video long time ago that said it was a clutch type ,per a ford rep. its not 100% but it might as well be 99.99%. add to that the use of friction modifier and you can call it 99.9999%. what more proof do you need
Thats funny, thats (TFL) who just recently said it was a Torsen like the Raptor. It sounds like they forgot their own facts haha.
 
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Old May 25, 2020 | 02:40 PM
  #54  
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Originally Posted by BillyE
Right. Friction modifier causes excessive slip and can damage Torsen and similar.
Theres no slip in a torsen, its all mechanical gear on gear. Synthetic Gear oil can damage Torsen style diffs.
 
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Old May 25, 2020 | 03:13 PM
  #55  
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Originally Posted by lexustech48

Of course, if y'all are serious about off-roading these Super Duties, an F250 with the Sterling 10.5 and front Dana 60 running OX lockers would be the way to do it.
No way, Detroit lockers are the way to go.
 
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Old May 25, 2020 | 03:48 PM
  #56  
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Originally Posted by 00t444e
No way, Detroit lockers are the way to go.
I don't like Detroits up front on a true off-road trail rig. I've been in situations where they don't release, drastically reducing maneuverability in tight situations. Selectable would be my choice for a serious off road-rig. I don't see a Super Duty ever being a serious off road trail rig or rock crawler, but still wouldn't want a Detroit up front The LSD on the Tremor and Raptor makes sense for their intended use, although a selectable on the Tremor wouldn't have been bad.
 
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Old May 25, 2020 | 07:03 PM
  #57  
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Originally Posted by lexustech48
Theres no slip in a torsen, its all mechanical gear on gear. Synthetic Gear oil can damage Torsen style diffs.
You should research how they work. They do slip. That’s why synthetic isn’t recommended either.
 
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Old May 25, 2020 | 07:07 PM
  #58  
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I agree that other options might be better, but a clutch pack differential combined with a good traction control could be very effective.
 
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Old May 25, 2020 | 08:36 PM
  #59  
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Originally Posted by ForCal
I don't like Detroits up front on a true off-road trail rig. I've been in situations where they don't release, drastically reducing maneuverability in tight situations. Selectable would be my choice for a serious off road-rig. I don't see a Super Duty ever being a serious off road trail rig or rock crawler, but still wouldn't want a Detroit up front The LSD on the Tremor and Raptor makes sense for their intended use, although a selectable on the Tremor wouldn't have been bad.
I like an auto locker like a Detroit or even a lunchbox locker in the front, selectable lockers make it hard to turn when locked, my Jeep has an auto locker in the front and I can turn it with one finger. Got a Detroit in the rear of my F250 and I have a Lock Right I am getting ready to put in the front.
 
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Old May 25, 2020 | 09:20 PM
  #60  
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Originally Posted by 00t444e
selectable lockers make it hard to turn when locked,
Thats the beauty of a selectable locker, you disengage it at the push of a button. The rig Ive been in that had a Detroit up front would sometimes get into a bound up position where it wouldn't unlock, making it very difficult to maneuver the obstacle. That was with hydro assist steering. My personal dedicated offroad rig has a Detroit rear, Zip locker up front.
 
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