I googled and also a forum search on the subject but came up empty. Does anyone here know what the differences are and are they all that important.

 

The 10r140 torque shift holds 1400 lb ft of torque compared to the 10r80 (now the 10r100) which handles 590. The output shaft is much larger then the torque shift g. The evolution from the 10r80 to 10r100 was in the works for some time. Think of it as an update not an upgrade. The 10r180 is due to the fact the 10r140 is at the upper limits with the current 6.7, anything new could be a problem. The 10r180 is to hold 25% more hp/tq. The 10r100 torq shift g is 230 lbs while the 10r140 is 340 lbs.

 

For the 10R140, its actually 1,400N-m (1,033 ft-lbs) nominal max input torque rating.

The 10R100 is 1000 N-m (737 ft-lbs)

The 10R80 is 800 N-m (590 ft-lbs as stated above)

 

Look at this video
About 2:55 in...

 

Thanks for the response.
So if I read correctly, the g is the older version meant for less torque and not really suitable for the higher torque diesel engines and maybe even the 7.3 gasser. Then came along the 10r140 to be able to accommodate the higher torque engines but these even HIGHER torque engines of today may be getting to the upper limits of that trans. They're working on a newer one, the 10r180.
I'm getting the 7.3 engine and so I should have no problems with the 10r140 I'm guessing?
Are there any known persistent issues with these trans, I've read some having shifting problems but I don't know if it was a 10r100 or the 10R140 or both?

 

I have 7.3 10r140 and at 30,000 miles I have no issues. I run eco mode all the time and drive conservative.

 

The 6R140 was the original. It came out in 2011 as the only transmission from 2011-2016. The 6R100 (G) came out in 2017 for use in the gas powered F250's. The gear ratios in them were changed a little to make the truck feel more "peppy". (F350's all got the 6R140 regardless of the engine)

In 2020-2022, the 6R100 was still around for use in F250's with the 6.2L.

 

6R140 and 6R100

 

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10R140 came out in 2020 trucks. 6R140 from 2011-2016 then '17-'19 trucks got either 6R140 or 6R100(torque shift g) depending on configuration.

 

Yes I see the clarification, thank you.

 

Ah yes, how silly of me. I saw the 10R in Bruce’s post I quoted and ran with it

 

I knew it was just a typo!! You know better than that!

 

I would expect the 10R100 to be more than adequate for a gasser. I would also expect it to be smoother and more fuel efficient.

My 6R100 was a great transmission.

 

The 10r100 doesn't give much head room for performance upgrades to the 7.3 . Once you add a 3L Whipple you need a 10r140.