Diesel Forum - TheDieselStop.com

Diesel Forum - TheDieselStop.com (https://www.thedieselstop.com/forums/)
-   2017 & Up General Questions (https://www.thedieselstop.com/forums/f337/)
-   -   DRW - 3.55 vs 4.10 (https://www.thedieselstop.com/forums/f337/drw-3-55-vs-4-10-a-656086/)

GaryF 07-14-2019 05:19 PM

DRW - 3.55 vs 4.10
 
Thinking of moving up to 19 F350 Dually trading a 13 DRW with 3.73 rear axle. Just curious thoughts on 3.55 vs 4.10 axle. I do not see a option for a 3.73. Little concern with fuel mileage if i go with 4.10 which is what most inventory shows around Raleigh, NC.



I understand the axle / wheel rotation multiplier with 3.55 - 3.73 - 4.10 and its effects on engine RPM's. Just curious what real world experience is with the 2017 and up truck owners.


I average towing 10-11 mpg with 2013 DRW 3.73 axle. Thinking a 4.10 will be 9 -10 mpg? Not sure what a 3.55 axle would give me.


Thanks
Gary

Jesus_man 07-19-2019 05:04 PM

What do you tow? That could help. If you are under 10k, then I think you could do 3.55's, but anything heavier and I would consider the 4.10's. I am surprised they don't offer the happy medium 3.73

GaryF 07-20-2019 02:10 PM

I will be towing a 17-k to 18-k filth wheel RV. Will most likely settle on the 4.10 axle.




Thanks

Jesus_man 07-21-2019 11:05 AM

I'll let those who tow that heavy to weigh in on this, but I would tend towards the 4.10's as well, after I made absolute sure the 3.73's were not avail.

jimmy 07-21-2019 11:48 AM

WHen I go to ford.com and configure I see 3.55, 3.73 and 4.10 for DRW F350 diesel

GaryF 07-21-2019 03:01 PM

1 Attachment(s)
Quote:

Originally Posted by jimmy (Post 4664484)
WHen I go to ford.com and configure I see 3.55, 3.73 and 4.10 for DRW F350 diesel


6.2 Gas engine 3.73 is avail. Diesel's are 3.55 or 4.10

jimmy 07-22-2019 08:33 AM

I was going by Ford Website and I just configured another f350 4x4 crew cab XL STX package, 6.7 diesel :


Your Super Duty

Save
Share
Print

Payment
$39,605 Base MSRPS1
$18,585 Total of OptionsS4
$1,595 Destination ChargesS17
$59,785 Total MSRPS16
-$1,000 Available IncentivesS3

$58,785 Estimated Net PriceS5
$821 Monthly PaymentS6 Purchase based on $5,979 down payment, 84 month term and 7.9% APR, $0 trade-in-value
Get an Internet Price
Search Inventory
Special Offers
Look up Trade-In-Value
Pricing Tools

Print Page
Calculate PaymentsS6
Available Incentives
Estimate Your Credit
Apply for Credit

Edit
Model
$39,605 2019 Ford Super Duty F-350 XL, Crew Cab®, 8’ Box, 6.7L 4-Valve Power Stroke® Diesel V8 (B20) Engine, TorqShift® 6-Speed SelectShift® Automatic with 6.7L engine, 3.55 Limited Slip Axle Ratio, 4X4, DRW

Edit
PaintS4
$0 Race Red
$0 No Secondary Color

jimmy 07-22-2019 10:50 AM

SO which Ford provided information source is wrong?

Your Super Duty

Save
Share
Print

Payment
$39,605 Base MSRPS1
$18,585 Total of OptionsS4
$1,595 Destination ChargesS17
$59,785 Total MSRPS16
-$1,000 Available IncentivesS3

$58,785 Estimated Net PriceS5
$821 Monthly PaymentS6 Purchase based on $5,979 down payment, 84 month term and 7.9% APR, $0 trade-in-value
Get an Internet Price
Search Inventory
Special Offers
Look up Trade-In-Value
Pricing Tools

Print Page
Calculate PaymentsS6
Available Incentives
Estimate Your Credit
Apply for Credit

Edit
Model
$39,605 2019 Ford Super Duty F-350 XL, Crew Cab®, 8’ Box, 6.7L 4-Valve Power Stroke® Diesel V8 (B20) Engine, TorqShift® 6-Speed SelectShift® Automatic with 6.7L engine, 3.55 Limited Slip Axle Ratio, 4X4, DRW

Edit
PaintS4
$0 Race Red
$0 No Secondary Color

DonWarkentin 07-22-2019 01:00 PM

4.10 can make it up the hills faster when towing 17k-18k. 3.55 gets better mpg when not towing. Which is more important to you?

Phillippeterson 07-29-2019 03:21 PM

I wanted the 4.30 so got an F450. A 4.10 may get better mileage, but not by much. A higher ratio like the 4.10 or 4.30 will let you get a load going with less strain on the engine and transmission and may even get better fuel mileage except for long, long highway miles on level ground. If you're doing any stop and go, and I don't mean constant stop and go like city driving but every few miles going through small towns, or going anywhere but level ground you'll appreciate the lower ratio and won't suffer meaningful differences in mpg.

Stroking it 07-30-2019 07:50 AM

No matter what rear gear you get from the factory the transmission will make up for it in the higher gear. Any gear your truck comes with will work just fine. I have 3.31"s in mine and I have no problem towing my 13,000 5th wheel. I didn't think it was going to work and was surprised at how the truck handled the trailer.
Fuel millage will basically be the same no matter which gear you chose.

lincster 08-08-2019 12:15 PM

I messed up when I ordered my 2019.
I thought the same on the gears and mileage so I did the 3.55.
Towing up 6% grades with a 17,000lb 5er, I wish I had the 4.10.
Shifts down into 4th to maintain 60mph.
My 2012 with the 3.73 would hold 60mph in 5th up the same hills.
I see no difference in unloaded mileage between my 2012 with 3.73 and my 2019 with 3.55.

Go the 4.10.

wpetko 08-14-2019 08:24 AM

The best analogy I can think of concerning a gear ratio intended for fuel mileage is trying to pedal a 10 speed bike up a steep hill in high gear. Get your truck equipped for towing & let the fuel mileage take care if itself. The mileage probably won’t be affected that much anyway. My ‘13 dually does fine with the 3.73 gears towing my 16,400 pound 5th wheel, but I wouldn’t want to do it with the 3.55. My next truck (if I live that long☺️) will probably have the 4.10s. Heck. It may even be an F-450!

DonWarkentin 08-15-2019 12:27 PM

Quote:

Originally Posted by wpetko (Post 4666002)
The best analogy I can think of concerning a gear ratio intended for fuel mileage is trying to pedal a 10 speed bike up a steep hill in high gear. Get your truck equipped for towing & let the fuel mileage take care if itself. The mileage probably won’t be affected that much anyway. My ‘13 dually does fine with the 3.73 gears towing my 16,400 pound 5th wheel, but I wouldn’t want to do it with the 3.55. My next truck (if I live that long☺️) will probably have the 4.10s. Heck. It may even be an F-450!

High gears are not intended for going up steep hills. Low gears are for that. High gears are for level ground. High gears will not help you to make it easier to get up a steep hill. Try riding the ten speed on level ground with the lowest gear. Then you will agree that the higher gear is better for level ground. The reason why Ford offers different gears is that some people drive on level ground with light loads. Others drive up steep hills with heavy loads. A higher gear is better for some people, while a lower gear is better for others. It depends upon how you will use your truck.

Jesus_man 08-15-2019 01:30 PM

Quote:

Originally Posted by DonWarkentin (Post 4666066)
High gears are not intended for going up steep hills. Low gears are for that. High gears are for level ground. High gears will not help you to make it easier to get up a steep hill. Try riding the ten speed on level ground with the lowest gear. Then you will agree that the higher gear is better for level ground. The reason why Ford offers different gears is that some people drive on level ground with light loads. Others drive up steep hills with heavy loads. A higher gear is better for some people, while a lower gear is better for others. It depends upon how you will use your truck.

I am pretty you two are on the same page, but what a high gear (numerically) to you is what he means by low gear. Ideally he would have specified higher meaning 3.55's. It's hard to know what someone means when they say "higher" gear.


All times are GMT -5. The time now is 04:47 PM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

 
For the best viewing experience please update your browser to Google Chrome