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May 22, 2018 | 01:15 PM

#16

cattaco

Senior User

Joined: Oct 2017

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Quote:

Originally Posted by Bill_The_PA

Ok. I guess I’m way off here and apologizing in advance but aren’t we talking about the ‘17-‘18 SDs (6.2 & 6.7) and they have the 6r140? They just shift different with the diesels having more shims and friction plates? Your saying that the gas doesn’t. The 6.7 250-350 have the same Powertrain and only differ in suspension slightly bigger diff housing and bigger bed blocks??

2017+ 6.2 F250 transmission is essentially a beefed up 6r80 that was found in the F150's before the 10 speed. Completely different transmission than the 6r140. Obviously we don't know how well the 6r100 will hold up, but for me on paper it makes way more sense.

May 22, 2018 | 01:43 PM

#17

Bill_The_PA

Fleet Mechanic

Joined: Feb 2018

Posts: 1,363

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From: Burton NB Canada

Quote:

Originally Posted by Clubwagon

The 17+ F250 6.2 has the Torqshift G. The 17+ F250 6.7 and all F350s (both the 6.2 and 6.7), have the 6R140.

think that’s where I was going wrong. As I have the 350 most of my information gathering and readings where WRT 350s. The 6.2 has less shims and I think friction plates vs the 6.7.
Thankx all for clearing that up.

May 22, 2018 | 03:01 PM

#18

Clubwagon

Cargo Master

Joined: Dec 2003

Posts: 2,182

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From: Saint Augustine, FL

Quote:

Originally Posted by Bill_The_PA

Not sure what you mean by "shims" in this respect. The TorqShift G and 6R140 are completely different transmissions. The specifics have been noted previously in the thread.

I haven't bothered to note the differences in the plate counts in the two unit's clutch packs. Not really relevant given they are completely different transmissions and not a variation of the same basic design.

May 22, 2018 | 05:48 PM

#19

cattaco

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Joined: Oct 2017

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Quote:

Originally Posted by Clubwagon

He's saying the F350 with the 6.2 has less clutch packs vs the 6.7. But he didn't realize the F250 with the 6.2 now has a different transmission. At least that is what I believe he is saying.

May 22, 2018 | 05:54 PM

#20

Bill_The_PA

Fleet Mechanic

Joined: Feb 2018

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From: Burton NB Canada

Quote:

Originally Posted by Clubwagon

I was referring to the friction and separator (shims) plates. Mainly the forward and direct clutch packs. 5 vs 3 and 5 vs 4 respectively.
I don’t won’t to get mired down in this as I’m not a mechanic nor a transmission expert. I’ve apologized for any confusion on my part and that My thought process and comments were based on the ‘17-18 F350 gas and diesel and mistakenly didn’t realize that until later on.
I was hoping the op (and others would focus more on the the issues that I and others have had) and that I briefly commented on. Oh well life in the shark tank right.

Hopefully this clears up the “shims” issue as this is the slang we use. Just thought folks would know what is in between the friction plates. Again apologies.
Bill.

May 22, 2018 | 05:55 PM

#21

Bill_The_PA

Fleet Mechanic

Joined: Feb 2018

Posts: 1,363

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From: Burton NB Canada

Quote:

Originally Posted by cattaco

He's saying the F350 with the 6.2 has less clutch packs vs the 6.7. But he didn't realize the F250 with the 6.2 now has a different transmission. At least that is what I believe he is saying.

yes Thankx for that

May 22, 2018 | 06:50 PM

#22

Clubwagon

Cargo Master

Joined: Dec 2003

Posts: 2,182

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From: Saint Augustine, FL

Quote:

Originally Posted by Bill_The_PA

No problem. Just didn't know what you were referring to as "shims". In the transmission business (I am a former Aamco owner) we call them "clutches and steels". Shims are often used to set preloads on tapered bearings or to set stack heights on gearsets.

May 23, 2018 | 05:17 AM

#23

tseekins

Thread Starter

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Joined: Jan 2008

Posts: 40,019

Likes: 1,518

From: Maine, Virginia

Thanks for clearing that up guys. I thought I had read that there would be different transmissions. So after a year in production it seems that there are no serious issues if any at all, that's a good thing.

The 6R80 in the F-150's is a tad quirky in it's shifting strategy but otherwise a bulletproof transmission.