TREMOR Front Diff performance
Logistics Pro
Joined: Mar 2019
Posts: 4,064
Likes: 13
...so the Tremor would be like the Honda they are referring to in the third video, not as capable?
Senior User
Joined: Sep 2017
Posts: 413
Likes: 15
From: Forest Lake, MN
I looked up the front diff being talked about on the ford parts website, it uses clutches, I’ll try to find pic.
Senior User
Joined: Mar 2013
Posts: 306
Likes: 1
I got stuck in sugar sand in 2wd with 6.7L Tremor.
Placed it in 4wd Hi and rear diff lock engaged and barely above idle rpm it crawled out.
I then made a rudimentarily test and accelerated hard on thin grass growing on top of the sugar sand, and stopped prior to my rear tires catching up to the front tire tracks. Got out and inspected, all 4 wheel tracks showed signs the tires all spun/engaged. In other words all 4 tires engaged and not 3 out of the 4.
It would be really interesting to see a video of all 4 tires on material handling rollers to verify traction process of the front differential.
Placed it in 4wd Hi and rear diff lock engaged and barely above idle rpm it crawled out.
I then made a rudimentarily test and accelerated hard on thin grass growing on top of the sugar sand, and stopped prior to my rear tires catching up to the front tire tracks. Got out and inspected, all 4 wheel tracks showed signs the tires all spun/engaged. In other words all 4 tires engaged and not 3 out of the 4.
It would be really interesting to see a video of all 4 tires on material handling rollers to verify traction process of the front differential.
Thread Starter
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Fleet Mechanic
Joined: Feb 2010
Posts: 1,446
Likes: 28
From: Hot Springs
I got stuck in sugar sand in 2wd with 6.7L Tremor.
Placed it in 4wd Hi and rear diff lock engaged and barely above idle rpm it crawled out.
I then made a rudimentarily test and accelerated hard on thin grass growing on top of the sugar sand, and stopped prior to my rear tires catching up to the front tire tracks. Got out and inspected, all 4 wheel tracks showed signs the tires all spun/engaged. In other words all 4 tires engaged and not 3 out of the 4.
It would be really interesting to see a video of all 4 tires on material handling rollers to verify traction process of the front differential.
Placed it in 4wd Hi and rear diff lock engaged and barely above idle rpm it crawled out.
I then made a rudimentarily test and accelerated hard on thin grass growing on top of the sugar sand, and stopped prior to my rear tires catching up to the front tire tracks. Got out and inspected, all 4 wheel tracks showed signs the tires all spun/engaged. In other words all 4 tires engaged and not 3 out of the 4.
It would be really interesting to see a video of all 4 tires on material handling rollers to verify traction process of the front differential.
I emailed TFL about testing the one they have but haven't heard anything back.
Thread Starter
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Fleet Mechanic
Joined: Feb 2010
Posts: 1,446
Likes: 28
From: Hot Springs
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More Turbo
Joined: Jan 2010
Posts: 642
Likes: 14
That pic, if the same one from the ELD thread, is of a transmission forward gear drum clutch not a differential.
Mountain Pass
Joined: Mar 2020
Posts: 248
Likes: 4
Once my Tremor comes in may have to pop off the dif cover and verify what is in there if it doesn’t get answered before then. With the plant shutdown it could be quite some time though.
Hotshot
Joined: Jun 2003
Posts: 12,325
Likes: 4,336
From: SW VA
It's probably a very weak clutch pack, and relies on traction control for the more demanding off-road situations (based on the modes you select on the cluster).
Ford's clutch-type rear LS units from the 90's through the '00's sucked from the factory...I just imagine a front LS unit being designed weaker. Ford has A LOT of nannies to help stupid people drive...and in the era of sue-happy idiots and money-hungry lawyers...I can't imagine Ford doing something crazy in the front diff.
Ford's clutch-type rear LS units from the 90's through the '00's sucked from the factory...I just imagine a front LS unit being designed weaker. Ford has A LOT of nannies to help stupid people drive...and in the era of sue-happy idiots and money-hungry lawyers...I can't imagine Ford doing something crazy in the front diff.
More Turbo
Joined: Jan 2016
Posts: 684
Likes: 84
From: Green Bay Wi
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
Mountain Pass
Joined: Mar 2020
Posts: 248
Likes: 4
Would be really nice to have it today pulling the trailer out from the in-laws land. Still have a few months before I get mine, in the meantime will have to put up with the G80 and chains for extra traction. Really miss the Raptor locker and front torsen for this situation, didn’t have to chain up.