Torqueshift Transmission
Senior User
Joined: Nov 2006
Posts: 476
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Also the TorqShift has TOW/HAUL mode button on the end of the shifter, unlike the previous one that had OD (overdrive) OFF button.
Its a 5-speed auto. When hauling/towing heavy loads, push the TOW/HAUL mode on (dash light comes on also).
Its a 5-speed auto. When hauling/towing heavy loads, push the TOW/HAUL mode on (dash light comes on also).
Token Redneck
Joined: Jun 2007
Posts: 9,339
Likes: 350
From: Breckenridge, TX
It's really has 6 forward gears. It's a compound unit, has 2 up front, 3 in the back, combined for 6 possible gearings. Two of them are so close they're indistinguishable.
From the 6.0L Tech folder link to relearning the shift pattern:
"The 5R110W, or TorqShift, automatic transmission is a redesign of the E40D/4R100. Basically, the gear ratio for first gear was lowered from 2.71 : 1 to 3.09 : 1. To get second gear the overdrive clutch is engaged to give a ratio of 2.2 : 1. Third gear is now the same ratio as the old second gear, 1.54 : 1. The TorqShift is advertised as being a 5 speed automatic, when actually it has six forward speeds. On cold engine operation (below 0 degrees) the overdrive clutch is engaged in third gear for a ratio of 1.09 : 1. The transmission will shift directly to sixth from fourth and fifth is skipped. On a warm engine the shift pattern would be 1st, 2nd, 3rd, 5th (direct drive), 6th."
From the 6.0L Tech folder link to relearning the shift pattern:
"The 5R110W, or TorqShift, automatic transmission is a redesign of the E40D/4R100. Basically, the gear ratio for first gear was lowered from 2.71 : 1 to 3.09 : 1. To get second gear the overdrive clutch is engaged to give a ratio of 2.2 : 1. Third gear is now the same ratio as the old second gear, 1.54 : 1. The TorqShift is advertised as being a 5 speed automatic, when actually it has six forward speeds. On cold engine operation (below 0 degrees) the overdrive clutch is engaged in third gear for a ratio of 1.09 : 1. The transmission will shift directly to sixth from fourth and fifth is skipped. On a warm engine the shift pattern would be 1st, 2nd, 3rd, 5th (direct drive), 6th."
Former Vendor
Joined: Sep 2000
Posts: 2,627
Likes: 76
From: South Carolina
texastech_diesel is 100% correct...This is the first post that I have seen that was on the money. One thing that we developed in our tuning is to use the 5th gear no skipping it ...as 5th and 6th are one in the same in stock strategy form.
GREAT POST texastech diesel.....
GREAT POST texastech diesel.....
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Senior User
Joined: Nov 2006
Posts: 476
Likes: 0
TorqShift 5-speed is really a 6-speed, but why?
I have heard it was a 6-speed (but only uses 5 at a time depending on the temperature). So why is it good to have 2 different 3rd gear ratios when its cold out? To maybe keep the RPMs higher for a little longer to warm up the engine? But I wouldnt think that an extra few seconds of higher RPM would do much for warming. If Ford was willing to make a 6-speed trans anyways, then I think they would have just lowered 1st gear a little more, made all the gear ratios a little tighter, & just have it go through all 6 speeds.
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
It's not that easy. The extra fourth gear, not third gear, is a by product of the design. It wasn't designed in for cold weather.
The trans is a two speed in front of a three speed.
First gear is both sets in first gear. (1:1 time 3.11:1 = 3.11:1)
Second is the front upshifted and the rear still in first.(0.71:1 times 3.11:1 = 2.2:1)
Third is the front back in low and the rear in second. (1:1 times 1.54:1 = 1.54:1)
Fourth is the front in high and the rear still in second. This is the one used when cold. (0.71:1 times 1.54:1 = 1.09:1)
Fifth is the front in low and the rear in third. This is 1:1 on both sets.
Sixth is the front in high and the rear in third. (0.71:1 times 1:1 = 0.71:1)
Fourth is used cold because it was easier to get the trans to do this shift in extreme cold. The 3-5 shift didn't work very well cold, so this was the best way to make the trans work when cold. It stops using fourth when the trans is above 0F, so it doesn't stay in this mode very long.
The trans is a two speed in front of a three speed.
First gear is both sets in first gear. (1:1 time 3.11:1 = 3.11:1)
Second is the front upshifted and the rear still in first.(0.71:1 times 3.11:1 = 2.2:1)
Third is the front back in low and the rear in second. (1:1 times 1.54:1 = 1.54:1)
Fourth is the front in high and the rear still in second. This is the one used when cold. (0.71:1 times 1.54:1 = 1.09:1)
Fifth is the front in low and the rear in third. This is 1:1 on both sets.
Sixth is the front in high and the rear in third. (0.71:1 times 1:1 = 0.71:1)
Fourth is used cold because it was easier to get the trans to do this shift in extreme cold. The 3-5 shift didn't work very well cold, so this was the best way to make the trans work when cold. It stops using fourth when the trans is above 0F, so it doesn't stay in this mode very long.
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
Yeah, that would be a good bit of info.
Also, from what I understand, the 5r110w is quite a bit different from the 4r100. It's less of an evolution and more of a revolution. I've never had the opportunity to be inside one, but from what I gather, nothing is really the same.
Also, from what I understand, the 5r110w is quite a bit different from the 4r100. It's less of an evolution and more of a revolution. I've never had the opportunity to be inside one, but from what I gather, nothing is really the same.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
That's true. The basic architecture of the 5R100 looks like the 4R100, but only 5% of the parts are the same. A large part of that 5% is the pan, which is the same. Most of the rest of the common parts are basic things like bolts.
Senior User
Joined: Nov 2006
Posts: 476
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Thanks Mark Kovalsky, I appreciate a transmission engineer taking the time to explain it. I guess it can also be described like a 6-speed bike (if there were/is such a thing), where there is 3 sprockets on the rear and 2 on the front.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
Exactly! I've used that analogy to describe this transmission.