Gmc or Chevy gas 10spd

[Nlambert]

Originally Posted by kdauto

I was going by what I read in my mechanic's forums. Seems like my colleagues are more plagued by failure on the Ford version. Some debate it's the different spec fluid, some blame the shift programming, which is apparently kinda wonky and skips gears and stuff. I know the bulk of it is similar . It could simply be that there are fewer 6.6 gas sold with the 10 speed,so fewer breakages, I don't know.

I suffered with the 10 spd failure on my wife's last Expedition. It was catastrophic and Ford never did figure it out in the 6 months they had it on the lift. Once they did rebuild it, it made an 88 mile trip and puked its guts again.

I know... I know. The 10spd in the 2500s is not the exact same one.

But.. as the Ford customer service rep and I were having one of our many discussions about them he flat out told us.. dump it and move on.

He advised that we steer clear of Expeditions, Navigators, Mustangs, Rangers, F150s, F250s and GM equivalents. That pretty much steered us directly into a Nissan Armada and back into another 2500 Ram with a 6 speed.


There are some problems that are beginning to pop up across all of the 10spds that they don't know how to resolve. They're using the general public as the guinea pic to figure them out in real time. They work great when they work, but it's a nightmare when they don't.

If they figure out the issues and resolve them it will probably be a stout unit, but for "me", I'm gun shy and won't buy Ford anything until we have some level of confidence that they've worked out the kinks. It cost us quite a lot of money to dump that Expedition and walk away from it for two reasons. 1) The "fix" created another problem they weren't aware of, which grenaded the trans a second time. 2) Ford didn't actually reimburse us like they said they would. We ended up eating half of the rental car bill (while under warranty)(about $1,400) after they told us we would be reimbursed for the vehicle.

[Dave Pelletier]

Originally Posted by Nlambert

I suffered with the 10 spd failure on my wife's last Expedition. It was catastrophic and Ford never did figure it out in the 6 months they had it on the lift. Once they did rebuild it, it made an 88 mile trip and puked its guts again.

I know... I know. The 10spd in the 2500s is not the exact same one.

But.. as the Ford customer service rep and I were having one of our many discussions about them he flat out told us.. dump it and move on.

He advised that we steer clear of Expeditions, Navigators, Mustangs, Rangers, F150s, F250s and GM equivalents. That pretty much steered us directly into a Nissan Armada and back into another 2500 Ram with a 6 speed.


There are some problems that are beginning to pop up across all of the 10spds that they don't know how to resolve. They're using the general public as the guinea pic to figure them out in real time. They work great when they work, but it's a nightmare when they don't.

If they figure out the issues and resolve them it will probably be a stout unit, but for "me", I'm gun shy and won't buy Ford anything until we have some level of confidence that they've worked out the kinks. It cost us quite a lot of money to dump that Expedition and walk away from it for two reasons. 1) The "fix" created another problem they weren't aware of, which grenaded the trans a second time. 2) Ford didn't actually reimburse us like they said they would. We ended up eating half of the rental car bill (while under warranty)(about $1,400) after they told us we would be reimbursed for the vehicle.

I don't blame you after an experience like that. ....at the same time, as you say, the 10R80 doesn't share a single part with the 10R140. I did extensive research prior to buying my '22 and '23 Super Duties and came to the conclusion that the trannies were relatively solid and most teething issues with the new trans were resolved in 2020. Also, some of the "issues" aren't really issues, they are just different from what people expect; i.e. shift programming and tranny temps.

So far our two 10spds have been solid and the towing performance is incredible. I'm a Dodge/Ram/Cummins guy (still have four of them) but the 6spd is seriously lagging in performance and I don't have a lot of faith in the strength or longevity of the 68RFE. If/When Ram finally upgrades to an 8 or 10spd behind the Cummins, I'll consider them again. A beefed up version of the ZF-8 would be a contender.

2 cents,
Dave

[jonahex2099]

Originally Posted by Dave Pelletier

Yep, at 8,200 lbs GVWR there is absolutely no compelling reason to go diesel unless you just want to.

Dave

Yep that was part of the logic. And the 3500 has enough capacity where if we *wanted* to go somewhat bigger we could (whether TT or 5th Wheel) and still be well within the trucks capabilities. Extremely happy with the Passport tho, despite it being a covid build (everything I've found wrong short the wonky hole cutting, I've been able to fix myself or the dealer has been very helpful in correcting build issues), so unless we win the lottery, the Passport will be our last rig.

[Michael_EE]

Two Ford 10R140s so-far, no issues. Interesting video regarding the mechanical differences between the GM/Allison 10 and the Ford 10R:

https://www.youtube.com/watch?v=FUmxJ-6pRpk

[kdauto]

Originally Posted by Michael_EE

Two Ford 10R140s so-far, no issues. Interesting video regarding the mechanical differences between the GM/Allison 10 and the Ford 10R:

Funny, it seems like there are personal preferences here. If we rely on this video, GM's 10 speed will have troble making it to end of warranty.

I have a feeling the GM 10 speed will be just fine. Alison has a reputation to uphold, and they didn't rubber stamp just anything. There's way more to it all than just parts.

[Dave Pelletier]

Originally Posted by kdauto

Funny, it seems like there are personal preferences here. If we rely on this video, GM's 10 speed will have troble making it to end of warranty.

I have a feeling the GM 10 speed will be just fine. Alison has a reputation to uphold, and they didn't rubber stamp just anything. There's way more to it all than just parts.

I agree, I think both will be just fine. I'm not so sure that Alison had much to do with that tranny though other than collecting a cheque for the use of their name...

Both the 10R140 and the 10L1000 represent an evolutionarily step up which is why the new GM and Ford truck's performance is so close. Ram needs to step up too as they are getting left behind.

Dave

[Michael_EE]

Originally Posted by Dave Pelletier

I agree, I think both will be just fine. I'm not so sure that Alison had much to do with that tranny though other than collecting a cheque for the use of their name...

Both the 10R140 and the 10L1000 represent an evolutionarily step up which is why the new GM and Ford truck's performance is so close. Ram needs to step up too as they are getting left behind.

Dave

Allison's name is simply a branding exercise, with GM and Allison claiming that that Allison provided "oversight" to the GM design. I agree with the video creator that several of the Ford design changes seem more robust, but it's hard to make make a quality comparison because there isn't a lot of hard field data to consider - it's mostly anecdotal.

But there are some experts that have a preference:

https://nextgendiesel.com/blogs/tran...tions-upgrades

https://inglewoodtransmission.com/i-...n-10l1000.html

https://www.drivingline.com/articles...d-is-superior/