Can someone explain this to me and how can I tell if my 2005 F250 SD V-10 has it?

Thanks in advance!

 

If you have the automatic in your '05, you have it. Any engine.

-Dave

 

Dave is correct... Starting in '05 the TorqShift (aka 5R110W) became the only automatic tranmission available for the Super Duty...

 

Thanks!!

It sounds self explanitory but can someone give me a quick description of how it works and its benefits....

 

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).

 

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."

 

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.....

 

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.

 

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.

 

So can we get that ^^^^ put into the tech folder with the description I stole from there?

Thanks Mark.

 

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.

 

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.

 

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.

 

This is what it looks like in one piece





and this is what it looks like in a hundred pieces

 

Exactly! I've used that analogy to describe this transmission.