2023 RAM 4500

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turbodaniel

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Oct 25, 2023
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Location
ohio
Ram Year
2023
Engine
6.4
HELP! I just took possession of my 4500 it has a 6.4 engine 108 wheelbase with a custom body weighing approx 4000lbs
This truck is a absolute pig, absolutely no acceleration the tranny seems to not downshift when decelerating and in not the right gear when accelerating I have appt. at dealer next week , thought I would post hear for possible insight Thank you
 

KKBB

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Location
Oakland Ia
Ram Year
2019
Engine
6.4
Just curious why you purchased it if it has no power and doesn't do what you want it to do as far as shifting goes?!?!
 

GTyankee

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El Cajon Calif. 92021
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2016
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3.0 ecodiesel
that large of vehicles, weighs at least 7800 pounds U.S.
without anyone in it, nothing in it but a tankful of fuel.
Then you add the weight whatever type of bed you picked to sit on it.

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1stindoor

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Location
NC
Ram Year
'23 2500 MegaCab
Engine
6.4 Hemi
HELP! I just took possession of my 4500 it has a 6.4 engine 108 wheelbase with a custom body weighing approx 4000lbs
This truck is a absolute pig, absolutely no acceleration the tranny seems to not downshift when decelerating and in not the right gear when accelerating I have appt. at dealer next week , thought I would post hear for possible insight Thank you
I'm curious as to why you would buy a 4500 series with the 6.4? That's a beast of a truck that truly needs the Cummins engine.
 

tjfdesmo

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I have not driven a truck with the 6.4 and Aisin AS66, but based on my experience with the AS69, I can see where it would feel lazy with a gasser. The ZF 8 speed works great with the 6.4, but I don't think it's even available in the 4500/5500??
 
Last edited:

turkeybird56

Military Vet 1976-1996 Retired US Army
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Central Texas
Ram Year
2019 Bighorn, 4 X 4, 3.21 rear, Bright Flame Red Pearl Coat, Mopar tonneau cover,Westin Bed rug
Engine
Hemi 5.7
I'm curious as to why you would buy a 4500 series with the 6.4? That's a beast of a truck that truly needs the Cummins engine.
DITTO x 100. RAM 4500 absolute monster work truck, Cummins, not a 6.4 gasser, IMHO...
 
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Location
Kentucky
Ram Year
2015 Longhorn
Engine
Cummins
Where are all the people that always say that gas is better than diesel? Seems like this guy isn’t happy with his hd gas truck
 

tjfdesmo

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Where are all the people that always say that gas is better than diesel? Seems like this guy isn’t happy with his hd gas truck
It's all about duty cycle, and expectations. Many utility companies, etc. that run bucket trucks or other heavy service bodies have gone to gassers to avoid DPF clogging and having to do manual regens, and all that good stuff. It's a tool to them and they don't expect "spritely" performance.

I have pulled a toy hauler with a 2015 pickup with 6.4 and 66RFE that went across the scales at 23,160 combined. Was it a barn burner? Nope, but it got the job done.

The Aisin is the potential wildcard, but I don't know if it could be substantially worse than the 66RFE. I have driven, not towed, my friend's '19 with the ZF and it was noticibly better than the RFE.

My '05 was a Cummins, my '19 was a Cummins, and my '24 will be another Cummins, so I have made my choice.
 

Travelin Ram

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Somewhere in NA. Probably. We travel a lot.
Ram Year
2022
Engine
6.4
Yeah, back when I was buying fleet vehicles gas MDT were popular. Exactly the tool where GVWR was important and GCVWR was not.

Business buyers spec based on the calculator and don’t need or want a fast truck. Cost of operation was the first priority.
 

Goose55

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Location
Ajo, AZ
Ram Year
2019
Engine
Cummins High Output 6.7L
that large of vehicles, weighs at least 7800 pounds U.S.
without anyone in it, nothing in it but a tankful of fuel.
Then you add the weight whatever type of bed you picked to sit on it.

View attachment 530684View attachment 530685
View attachment 530686

NICE LOOKIN' TRUCK!
 

chopperdog45

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Location
GA
Ram Year
2022
Engine
CTD 6.7
Man, I hope to actually hear the outcome of the OP's appointment with service, but I wonder if that is going to happen...
 

Dusty

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Rochester, New York
Ram Year
2019
Engine
5.7 Hemi
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33-gallon fuel tank, 18” wheels. Build Date: 3 June 2018. Now at 10118 miles.
 
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