Good Sam Club Open Roads Forum: Going back to gasser based on needs (need advice)
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 > Going back to gasser based on needs (need advice)

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Crespro

SoCal

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Joined: 07/23/2004

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Posted: 12/17/20 03:06pm Link  |  Quote  |  Print  |  Notify Moderator

Hi. Not the same change, but I went from a 40DP with a Cummins 400ISL to the 7.3, ten speed and 4.30. Tow a 13.6K fifth wheel with about 21K on a 26K GCWR.

TFL Truck towed 16K up the IKE with this combination, so it can go anywhere you need to. You will have substantial downshifts on the hills, but the same transmission is rated for 43K in the F-350 diesel, so I think it will be fine.

I do not track mileage carefully, but guess I am at 14 empty and 7 towing.

The gasser is much better for me -- about 75% of miles are not towing. I am getting used to the long bed, but the SRW is much better for parking in town.


Crespro 2021 Grand Design 310GK-R, 2020 F250LB, 7.3L, 4.30, Reese 27K

ognend

Virginia

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Joined: 06/25/2011

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Posted: 12/17/20 03:12pm Link  |  Quote  |  Print  |  Notify Moderator

Crespro wrote:

Hi. Not the same change, but I went from a 40DP with a Cummins 400ISL to the 7.3, ten speed and 4.30. Tow a 13.6K fifth wheel with about 21K on a 26K GCWR.

TFL Truck towed 16K up the IKE with this combination, so it can go anywhere you need to. You will have substantial downshifts on the hills, but the same transmission is rated for 43K in the F-350 diesel, so I think it will be fine.

I do not track mileage carefully, but guess I am at 14 empty and 7 towing.

The gasser is much better for me -- about 75% of miles are not towing. I am getting used to the long bed, but the SRW is much better for parking in town.


Thank you!


--
2021 Chevrolet 3500 DRW Cab&Chassis crew cab 4x4 6.6L gas with 9ft4" flatbed
2021 Palomino HS-2902 Max truck camper
2007 Double D all steel 2-horse bumper pull trailer

kellem

Shenandoah valley,VA

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Posted: 12/17/20 03:18pm Link  |  Quote  |  Print  |  Notify Moderator

wanderingaimlessly wrote:

Kellum, If you are following this, since you have the 7.3 and the 10 speed tranny, what is your trailer weight and fuel economy? And how does the mileage compare to the older gasser?


Very first tow after break-in with minimal highway towing a 30ft trailer weighing 7750 loaded was 10.1 mpg.

My previous truck, 2004 Ram 2500 struggled mightily on steep grades but the older 5.7's were only rated at 345 HP.

Using my old Ram primarily for towing, it never saw double digit mpgs.

I did however wait a year before ordering the 7.3 to eliminate some 1st year wrinkles.

Good luck in your search.

ognend

Virginia

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Joined: 06/25/2011

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Posted: 12/17/20 03:19pm Link  |  Quote  |  Print  |  Notify Moderator

kellem wrote:

wanderingaimlessly wrote:

Kellum, If you are following this, since you have the 7.3 and the 10 speed tranny, what is your trailer weight and fuel economy? And how does the mileage compare to the older gasser?


Very first tow after break-in with minimal highway towing a 30ft trailer weighing 7750 loaded was 10.1 mpg.

My previous truck, 2004 Ram 2500 struggled mightily on steep grades but the older 5.7's were only rated at 345 HP.

Using my old Ram primarily for towing, it never saw double digit mpgs.

I did however wait a year before ordering the 7.3 to eliminate some 1st year wrinkles.

Good luck in your search.


Thanks! Do you have the 2021? I had heard that there were issues with the transmissions on the 2020s? Or is this nor correct? Thank you.

kellem

Shenandoah valley,VA

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Posted: 12/17/20 04:41pm Link  |  Quote  |  Print  |  Notify Moderator

ognend wrote:

kellem wrote:

wanderingaimlessly wrote:

Kellum, If you are following this, since you have the 7.3 and the 10 speed tranny, what is your trailer weight and fuel economy? And how does the mileage compare to the older gasser?


Very first tow after break-in with minimal highway towing a 30ft trailer weighing 7750 loaded was 10.1 mpg.

My previous truck, 2004 Ram 2500 struggled mightily on steep grades but the older 5.7's were only rated at 345 HP.

Using my old Ram primarily for towing, it never saw double digit mpgs.

I did however wait a year before ordering the 7.3 to eliminate some 1st year wrinkles.

Good luck in your search.


Thanks! Do you have the 2021? I had heard that there were issues with the transmissions on the 2020s? Or is this nor correct? Thank you.


I watched the progression of the 7.3 closely and yes, there were a few issues with transmissions covered by Ford and a plug wire issue, hence the reason I waited.

Yes 2021 F250 and quite content.

time2roll

Southern California

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Posted: 12/17/20 05:58pm Link  |  Quote  |  Print  |  Notify Moderator

Let's see.... trade an unreliable lemon straight over for a new gasser with more payload and higher tow rating?

I would trade in a NY minute. You will not miss the DEF.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
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BurbMan

Noblesville, IN

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Posted: 12/17/20 08:05pm Link  |  Quote  |  Print  |  Notify Moderator

ognend wrote:

BurbMan wrote:

The 8 and 10 speed auto trannies are the game changer for gas engines. The 8.1 in my old Suburban needed to drop from OD into 3rd on any incline, but if you anticipated the hill and got it to 3200 rpm (peak torque for that motor) it would pull up almost any hill at almost any speed. If you dead-legged it and waited it for it to downshift as speed decreased, it could never catch up and it was a struggle to get up the hill. That was with only 340 hp.

An 11k trailer is no lightweight, even though it's 2k lighter than your old one...

I don't really need a diesel with for the weight I'm carrying but try and find a used 3500 without one...


Cool - just so I understand what you are saying - stick with a diesel?


No...what I'm saying is the same thing that BB_TX said:

BB_TX wrote:

With the higher horsepowers and torques of newer engines and the 8 and 10 speed transmissions they are far more capable than just a few years ago.



2015 Ram 3500 SRW 4x4 Laramie Crew Cab Long Box, Cummins diesel
2002 Lance 811 Slide-In Camper
SOLD: 2008 Terry 34' TT
SOLD: 2001 K2500LT 8.1L Suburban

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wowens79

Georgia

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Posted: 12/17/20 08:52pm Link  |  Quote  |  Print  |  Notify Moderator

ognend wrote:

ShinerBock wrote:

For what you are towing, you do not need a diesel and having one would be a want. I would recommend trying to find a friend or someone you know with a modern gas HD truck and see if they will let you tow with it. Another option is to see if you can rent one for a day from places like U-haul, Home Depot, and so on. Most of the time they are fairly new and renting one for a day is cheap. This may help in the decision making process and it is better to find out in a rental that you can take back versus a purchased vehicle than you can't.


Not a bad idea. There may be other commercial fleet rentals within an hour of where we live. Thanks!


Enterprise Truck rental rents Ram 2500 BigHorns with the 6.4 and 3.73 gears. I priced renting one, and could get it for like $60 a day. They sold a bunch of their fleet off back in the summer. I thought about grabbing one, but really want a 3500 with 4.10 gears.


2002 Chevy Silverado 1500HD 6.0l 241k miles and climbing
2016 Heritage Glen 29BH
2003 Flagstaff 228D Pop Up

steve-n-vicki

arkansas

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Posted: 12/17/20 10:41pm Link  |  Quote  |  Print  |  Notify Moderator

20,000 miles on a 2020 F350 super crew 8 foot bed 4 x 4 , 7.3 L Godzilla, 10 speed Transmission, so far the engine has performed extremely well, the transmission has performed extremely well, I get from a high of 16.4 to 9.8 mpg, truck has pulled everything that I have put behind it without complaint

ognend

Virginia

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Posted: 12/18/20 04:47am Link  |  Quote  |  Print  |  Notify Moderator

steve-n-vicki wrote:

20,000 miles on a 2020 F350 super crew 8 foot bed 4 x 4 , 7.3 L Godzilla, 10 speed Transmission, so far the engine has performed extremely well, the transmission has performed extremely well, I get from a high of 16.4 to 9.8 mpg, truck has pulled everything that I have put behind it without complaint


Thanks! This is what I have been hearing while I am doing my research as well! Wonderful [emoticon]

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