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New Tow Vehicle

Headed_West
Explorer
Explorer
I am looking at a 2019 F-250 with the 6.7 Turbo Diesel. My question is it has 3.55 rear end. I am towing a Keystone 30RLS I don't believe I am over 10K. fully loaded. Any issues towing with this gear ratio?
2016 F-250 Crewcab 6.2L 4x4
2018 Keystone Cougar Half Ton 30RLI
14 REPLIES 14

LanceRKeys
Explorer
Explorer
The ford zf6 standardโ€™s reverse gear is also too tall. I donโ€™t understand why, who is in such a hurry going in reverse? When I have my trailer on, I put it in 4 low with my hubs unlocked, so kind of a 2wd low then I can just let my clutch out and back up nice and slow.

PNW_Steve
Explorer
Explorer
Grit dog wrote:
PNW_Steve wrote:
I guess opinion do vary.

I have a Dodge 3500 with 5.9, 6speed and 3.73 gears.

IMHO: it's overgeared. I don't spend much time running 6th gear and reverse is too tall. I find myself slipping the clutch more than I like when backing up with a trailer on.

I have thought about putting a set of 4.11's in it.

My bus has 5.29's behind an Allison 6 speed auto. That would suit me perfectly except it had 6th gear locked out at the factory. I am working on getting 6th unlocked. Then it will be sweet.

Just my $0.02 ๐Ÿ™‚


Vehicles vary too, and you're comparing apples to oranges. You also drive too slow if you don't see 6th gear much in your 3rd Gen!
Agree reverse is too tall in the 5600 and G56 though.


I drive too slow?

Well I'll start driving faster if you want to pay for the speeding tickets ๐Ÿ™‚

My point was that you can "over gear". Taller is not always better.
2004.5 Dodge 3500 5.9 Cummins, NV5400, 5" turbo back stainless exhaust, Edger programmer & 22.5 Alcoa's
2002 Forest River 36 5th Wheel (staying home)
1992 Jayco 29 5th Wheel (Mexico veteran & headed back)
2002 "faux" Wanderlodge 40' My new toy....

sgfrye
Explorer
Explorer
you are set. enjoy the ride

Lynnmor
Explorer
Explorer
The 3.55 is only available with 20" wheels or select packages. Otherwise the standard is 3.31 and there are no other gear options. Both will pull exactly the same because the tire size offsets any difference. The exception is packages like snow plow preparation that has 18" wheels which gives about a 7% increase in gearing.

Wind_River
Explorer
Explorer
My new F250 has 3.55 gear ratio. Just got back from a trip. Pulling a 6% grade was a piece of cake. Truck shifted to 5th gear and kept going.
2019 Ford F250 XLT Super Duty 4X4 6.7 Power Stroke
2004 Jayco Jay Flight 25RKS
Equal-i-zer Hitch, 3502 Ultra Fab Tongue Jack
Twin Honda 2000i w/parallel kit

kellem
Explorer
Explorer
We live and tow quite often in the mountains so when I order a truck, it's always 4.10's but is not a daily driver.
I like the 6.7 and believe you'll be sitting pretty.

Grit_dog
Nomad III
Nomad III
PNW_Steve wrote:
I guess opinion do vary.

I have a Dodge 3500 with 5.9, 6speed and 3.73 gears.

IMHO: it's overgeared. I don't spend much time running 6th gear and reverse is too tall. I find myself slipping the clutch more than I like when backing up with a trailer on.

I have thought about putting a set of 4.11's in it.

My bus has 5.29's behind an Allison 6 speed auto. That would suit me perfectly except it had 6th gear locked out at the factory. I am working on getting 6th unlocked. Then it will be sweet.

Just my $0.02 ๐Ÿ™‚


Vehicles vary too, and you're comparing apples to oranges. You also drive too slow if you don't see 6th gear much in your 3rd Gen!
Agree reverse is too tall in the 5600 and G56 though.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5โ€ turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

PNW_Steve
Explorer
Explorer
I guess opinion do vary.

I have a Dodge 3500 with 5.9, 6speed and 3.73 gears.

IMHO: it's overgeared. I don't spend much time running 6th gear and reverse is too tall. I find myself slipping the clutch more than I like when backing up with a trailer on.

I have thought about putting a set of 4.11's in it.

My bus has 5.29's behind an Allison 6 speed auto. That would suit me perfectly except it had 6th gear locked out at the factory. I am working on getting 6th unlocked. Then it will be sweet.

Just my $0.02 ๐Ÿ™‚
2004.5 Dodge 3500 5.9 Cummins, NV5400, 5" turbo back stainless exhaust, Edger programmer & 22.5 Alcoa's
2002 Forest River 36 5th Wheel (staying home)
1992 Jayco 29 5th Wheel (Mexico veteran & headed back)
2002 "faux" Wanderlodge 40' My new toy....

Greene728
Explorer
Explorer
Headed West wrote:
I am looking at a 2019 F-250 with the 6.7 Turbo Diesel. My question is it has 3.55 rear end. I am towing a Keystone 30RLS I don't believe I am over 10K. fully loaded. Any issues towing with this gear ratio?


No offense or disrespect intended, but if Ford thought there would be an issue towing with that gear, do you think they would have put it in a diesel HD truck?

That truck won't even flinch with your camper behind it!

My 3500 Ram/Cummins has 3:42 and it will pull the hitch off my rig weighing in at around 11,500.

Friend has the same truck you are looking at and pulls a Montana at 12,500 and smiles every time!

When towing, just lock out 6th gear if its hunting any, and enjoy the ride.

And when running empty (especially on the highway) enjoy the good fuel mileage why she just purrs along.
2011 Crossroads Cruiser 29BHS ( Traded )
2017 Grand Design 303RLS ( Sold )
Currently camperless ( Just taking a break )
2016 Chevy Silverado 2500 4x4 6.0 and 4:10โ€™s
Me and the wife and our two daughters. Life's good!

Boomerweps
Explorer
Explorer
Wow. A 3.55 limited slip is a add on upgrade option on my 2019 F150, even with the regular towing package.
2019 Wolf Pup 16 BHS Limited, axle flipped
2019 F150 4x4 SCrew SB STX 5.0 3.55 factory tow package, 7000#GVWR, 1990 CC Tow mirrors, ITBC, SumoSprings,

Grit_dog
Nomad III
Nomad III
Ha, no it will be fine. What's the tow rating on that? Like 17-18klbs?
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5โ€ turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

ppine
Explorer II
Explorer II
Finally someone with a decent tow vehicle is asking questions.
With a taller rear end you can just use lower gears in the trans if you have to.

rhagfo
Explorer
Explorer
FishOnOne wrote:
I have 3.55 and it's not problem at all. It'll pull like a freight train.

I pulled 12,500# with a 2001 Ram 5.9 Cummins with 3.55 and did fine, you will be pleased with how 6.7 and 3.55โ€™s tows.
Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"

FishOnOne
Explorer III
Explorer III
I have 3.55 and it's not problem at all. It'll pull like a freight train.
'12 Ford Super Duty FX4 ELD CC 6.7 PSD 400HP 800ft/lbs "270k Miles"
'16 Sprinter 319MKS "Wide Body"