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**Jlawles2** · 03-09-2022, 09:18 AM

howson Scott'n'Wendy Dodge has to limit the torque in the first couple of gears due to known clutch issues. I think Ford and GM may be torque limiting, but not near as much as Dodge. One of the GM employees that own GD may or may not be able to confirm if GM is limiting. I would not be surprised to learn that all of them are limiting to help save the transmissions or other drive line components.

**MK397THR** · 03-09-2022, 10:53 AM

I don't know about torque limiting, but on our 2020 Chevrolet they have put a delay in throttle response.

**Jlawles2** · 03-09-2022, 11:33 AM

MK397THR I know my 04 and 18 have a touch of lag from apply of throttle, but not too bad. The biggest delay is torque converter flash. The 18 has it pretty bad, the 04 is not stock, so that has been resolved.

If you have the adjustable pedals, try moving them closest to the driver seat (full up). I know if my 18 pedals are move all the way close, throttle response changes dramatically. I think it may be in the scaling of the pedal sensor. That's, why Banks has a pedal moster. https://bankspower.com/products/thro...40940401262789

**MK397THR** · 03-09-2022, 11:44 AM

Ours does not have the adjustable pedals. The lag does not bother me, I know why it is there. The truck is plenty responsive for me. Yes , it is the ramp up on the TPS, I have seen some of the kits to remove the lag, but I am fine with it.

**Scott'n'Wendy** · 03-09-2022, 12:23 PM

Originally posted by Jlawles2 View Post

Dodge has to limit the torque in the first couple of gears due to known clutch issues.

Never heard of this? From everything I've read the AISIN trans is as tough or tougher than anything out there.
MK397THR
I believe the time lag you are talking about is the torque management. At least that's what mine feels like.
From a dead stop if you push down too far on the acclerator, you're like...'come on truck...move!' Seems to take it's time to accelerate.
From playing around I found if I let the truck roll off easy until about ten mile per hour, then mash it, it will launch quite hard.

**Yoda** · 03-09-2022, 01:08 PM

I found traction control and stability control. It starts page 247 here ;
https://www.fordservicecontent.com/F...US_04_2021.pdf

It appears both can be disabled if necessary. They sure do take the fun out of driving

Keith

Edit - locking differential limitations start on page 237 - so with everything on leaving dual burn out marks is just not possible - I am bummed!

......wait, there is an off button

**Yoda** · 03-14-2022, 11:26 AM

Today I was reading up on, gear lockout, M mode, EB mode, TH mode, IDN mode.......................modest operandi nodda

aka I Don't Know what mode

On my 04 6.0 I had a sweet spot on hill climbing at 4000 RPM in TH mode 4:10 axle. With the new 10 speed it seems you can drive it any way you want, including manual shift through the gears. For the 6.7 is there an RPM sweet spot folks have found for best mileage or hill climbing, etc.?

I know I will need to experiment with my specific trailer, but how are you folks with the 10 speed using all the features available. New truck will have the 3.55 E-locker rear end, There are a lot of threads out there, but one common element is locking out 10th in Tow Haul mode, but TH mode limits 9-10 usage does it not? So I have a lot to learn when my new beast gets here (scheduled to be built next week).

Thanks for any thoughts or resources that have accurate information.

Keith

**StephenO** · 03-14-2022, 12:21 PM

I would say that Tow Mode on our F150 with the 10 speed transmission will favor 8th gear while cruising on a flat grade. However, I find that Tow Mode will not lock out gears 9 and 10, as I've certainly seen it use gear 9, and I caught it once using gear 10. It didn't stay in those gears for long though, and again most of the time when on a flat surface, I see it in gear 8.

**TedS** · 03-14-2022, 12:54 PM

Originally posted by Yoda View Post

Today I was reading up on, gear lockout, M mode, EB mode, TH mode, IDN mode.......................modest operandi nodda

aka I Don't Know what mode

On my 04 6.0 I had a sweet spot on hill climbing at 4000 RPM in TH mode 4:10 axle. With the new 10 speed it seems you can drive it any way you want, including manual shift through the gears. For the 6.7 is there an RPM sweet spot folks have found for best mileage or hill climbing, etc.?

I know I will need to experiment with my specific trailer, but how are you folks with the 10 speed using all the features available. New truck will have the 3.55 E-locker rear end, There are a lot of threads out there, but one common element is locking out 10th in Tow Haul mode, but TH mode limits 9-10 usage does it not? So I have a lot to learn when my new beast gets here (scheduled to be built next week).

Thanks for any thoughts or resources that have accurate information.

Keith

I tow in tow-haul mode and can lock out 10th gear. Going up to Silverton I will lock out 8,9, and 10. 7th gear is 1:1 in the transmission. This engine seems to like 2000 to 3000 rpm. I think the torque peak is around 1800 rpm.

**Yoda** · 03-14-2022, 02:53 PM

Thanks Folks One dumb questions here. Is the 10 speed in the F150 the same as the 10 speed in the Super Duty's. Just wondering if the gearing is the same as the F150 have different engine configurations. In my learning search I did not look at any threads from a F150. Maybe I should have?

Just curious
Thanks Keith

**StephenO** · 03-14-2022, 03:43 PM

Originally posted by Yoda View Post

Thanks Folks One dumb questions here. Is the 10 speed in the F150 the same as the 10 speed in the Super Duty's. Just wondering if the gearing is the same as the F150 have different engine configurations. In my learning search I did not look at any threads from a F150. Maybe I should have?

Just curious
Thanks Keith

That is a good question actually, and according to this website they are not the same
https://www.dieselhub.com/trans/10r1...qshift-10.html

It would be nice if my truck had the same transmission as its larger siblings, but I am not sure if you Super Duty owners would feel the same

**Cate&Rob** · 03-14-2022, 04:39 PM

With my HDPP Ecoboost F150, I would lock out top gear (6 speed trans) to keep the engine at about 2100 RPM at 60 mph which was just into the boosted RPM range where the engine felt stronger and this avoided 6-5 downshifts on gentle grades. I towed thousands of miles in 5th gear like this with no problems.

With the 350 diesel and 10 speed, it takes surprising little grade to force a downshift from 10th gear. when towing This is usually a 10-8 downshift which is rather abrupt. I lock out 10th to run in 9th so that it takes a little more grade to force a downshift but when it does, it is usually a much smoother 9-8. I have been running in Tow/Haul but some have commented that this is not required with a 10,000 lb 5th wheel, so I will try not using Tow/Haul to see if this smooths our the shifts.

The throttle lag mentioned earlier is a "feature" of any turbo-charged engine. Diesel or Gasoline. Power comes on after the turbo spins up.

Rob

**TedS** · 03-14-2022, 04:47 PM

I prefer the tow-haul mode to make the shifts happen at higher rpm. For my driving taste there's less lugging of the engine. I've even used it when not towing.

**Scott'n'Wendy** · 03-14-2022, 05:50 PM

We are a little over a quarter of the way into 2022....hopefully you kept the old truck for now........

**TedS** · 03-14-2022, 10:03 PM

Originally posted by StephenO View Post

It would be nice if my truck had the same transmission as its larger siblings, but I am not sure if you Super Duty owners would feel the same

Here is what I found on a site comparing F series:

The 10-speed automatic transmission system in the Super Duty trucks shares only 7% of the components also seen in the F150 10-speed automatic transmission system.

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