Mega Cab 6.4 4x4 w/ 4.10 Performance?

So ramtrucks.com says the closest mega cab 4x4 w/ a 6.4 hemi & 4.10 gear ratio is ~700 miles away. Guess a test drive is pretty much out of the question.

Can anyone with this combination (or just past experience) comment on performance vs the 3.73?

Things like:

• Merging onto the freeway (loaded & empty)
• Any noticeably additional cruise noise due to the higher RPMs? (slight but you never know)
• Passing performance (60mph - 90mph, loaded & empty)
• Fuel efficiency (if we can even use that word on a 2500)
• Other surprises?

I have a crew cab with 4.10 gears. I really don't see any downside. I doubt there is much, if any difference in fuel economy. Performance-wise, it will definitely "get with the program" if you tromp on it, but you can almost see the needle on the fuel gauge bowing to the left.

IMHO, if it's performance you are after primarily then you will regret not getting the 4.10's. You are already dealing with diesel trans ratios, so the rear gear really helps to make up for it. Even with 4.10's (34" tires) I don't shift into 3rd until 72mph under full throttle.

There is always to option to install 4.56's later, but it's not cheap at around 2k installed from what I've heard.

Cool - thanks, y'all.

I would really like to drive one but hiking my butt 1400 miles for a test drive is not in the cards.

York has a crew-cab with 4.10 gears:
New 2016 Ram 2500 Tradesman For Sale | Prescott AZ


Close enough to try?

I can't talk about loaded yet - get the 4.10 - don't get the 4x4 unless you really go off road. It is better to have the payload. Get a limited slip and you will be ok.


Merging onto the freeway - more power then you need.

Any noticeably additional cruise noise due to the higher RPMs? (slight but you never know) no


Passing performance - more power than you need

Fuel efficiency - What???

Other surprises - blind spots


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tjfdesmo said:

York has a crew-cab with 4.10 gears:
New 2016 Ram 2500 Tradesman For Sale | Prescott AZ


Close enough to try?

Click to expand...

I'm unfortunately not in AZ anymore

Thanks for the advice, dexter!

I have the same truck you are talking about. It's in my sig line below. Haven't towed a whole lot yet but can help with a few of your questions. Merging on to the hwy or fwy is fantastic. Especially, if you mash the skinny pedal at about 35-40mph you will be up to 70mph in 4-5 seconds. To me, it is extremely quick in this regard for a 7300# truck. While in Montana on Hwy 191 south of Bozeman heading to Big Sky we were the third vehicle behind a concrete truck approaching an area were we could pass before we started to head up the Gallatin River Canyon. When the oncoming lane was clear to pass I began to pull out to pass the car in front of me and the concrete truck. Well the douche bag in front of me was a Ford Explorer with an Ecoboost but he was towing a Drift boat. He decided he wanted to pass and pulled out in front of me. The ******* was passing other vehicle in the oncoming lane towing a boat and we're going about 80. Since I was riding his ass he kept on it when he merged back into his lane so I mashed the pedal again and flew past at about 95 with him giving me a stare and me showing him he was number one.


My truck is used for around town driving on the weekends and some after works stuff but used mostly for family road trips. Just got back from a 3700 mile trip from SoCal through Sheridan WY to Bozeman MT and back home. Basically reached each destination with the evic showing and avg MPG in the 17mpg range.

Not sure what trim level you are after but if you are in AZ I would take a close look at Dennis Dillon in Caldwell, ID. I ordered what I wanted and didn't pay for stuff I didn't. Totally worth the wait to have ano ordered truck when you are spending $50K on a vehicle.

I have the CC with 4.10 gears. I flew to Caldwell, Idaho from Sacramento for those gears. Everything in a 100 mile radius from Sacrament was 3.73. A test drive being limited, it was a gamble. it was well worth the trip in my opinion.

I have never had a mega-cab I have always bought the CC, my last truck was a 2014 2500 5.7L w/ 3.73 and now I have the 2016 2500 6.4L w/ 4.10 gears and I can tell you the minute I test drove the 2016 w/ 4.10 gears I could tell it compare to the 3.73 gears that I had.


I'm glad that I went with the 4.10 gears because I knew that I will be towing a trailer soon.

Skrap said:

I have the same truck you are talking about. It's in my sig line below. Haven't towed a whole lot yet but can help with a few of your questions. Merging on to the hwy or fwy is fantastic. Especially, if you mash the skinny pedal at about 35-40mph you will be up to 70mph in 4-5 seconds. To me, it is extremely quick in this regard for a 7300# truck. While in Montana on Hwy 191 south of Bozeman heading to Big Sky we were the third vehicle behind a concrete truck approaching an area were we could pass before we started to head up the Gallatin River Canyon. When the oncoming lane was clear to pass I began to pull out to pass the car in front of me and the concrete truck. Well the douche bag in front of me was a Ford Explorer with an Ecoboost but he was towing a Drift boat. He decided he wanted to pass and pulled out in front of me. The ******* was passing other vehicle in the oncoming lane towing a boat and we're going about 80. Since I was riding his ass he kept on it when he merged back into his lane so I mashed the pedal again and flew past at about 95 with him giving me a stare and me showing him he was number one.


My truck is used for around town driving on the weekends and some after works stuff but used mostly for family road trips. Just got back from a 3700 mile trip from SoCal through Sheridan WY to Bozeman MT and back home. Basically reached each destination with the evic showing and avg MPG in the 17mpg range.

Not sure what trim level you are after but if you are in AZ I would take a close look at Dennis Dillon in Caldwell, ID. I ordered what I wanted and didn't pay for stuff I didn't. Totally worth the wait to have ano ordered truck when you are spending $50K on a vehicle.

Click to expand...

Awesome - thanks skrap. 17mpg is really impressive! We're you hypermiling at 55mph or doing actual cruising?

I find it interesting that so many are finding it difficult to find a 2500 crew/mega with the 6.4L & 4.10s... my "local" Ram dealer (about 40 miles away) has a bunch of 2500s with the 6.4L, & virtually all have the 4.10s. I bought my '16 Tradesman crew cab (short bed) 6.4L 4x4 last month. Haven't towed yet, but acceleration/passing is great. So far, I can get about 16-17 mpg on the highway, & about 12-13 around town. It's amazing how quiet the truck is at cruising speed. I came out of a 2000 Super Duty V10 4x4 supercab. There's a few things I don't like about the truck (nothing to do with the drivetrain), but I can live with them. At 70 mph, the engine turns ~1800 rpm. The MDS activation is pretty invisible. The "hemi-tick" takes some getting used to, but overall, am very happy with the purchase.

AzRamLover said:

I'm unfortunately not in AZ anymore

Click to expand...

LOL That's what I get for ass-uming!

AzRamLover said:

Awesome - thanks skrap. 17mpg is really impressive! We're you hypermiling at 55mph or doing actual cruising?

Click to expand...

No problem. Since the 17 is from the evic there is no telling if it is accurate or .5 - 2.0 mpg off as some say. At the end of the I don't really care what my mileage is. Like is said it is used mostly for family road trips and the fuel it cost for said trips is FAR cheaper than any airline travel we do. Somewhere I have an EVIC pic of the truck showing 18.2mpg avg when we pulled into Missoula MT last summer.

On the 4.10 gears people are talking about. When I ordered and picked up my truck from Dennis Dillon (May 2015)I was talking to the fleet guy whom orders all the trucks for their lot inventory and he mentioned to me that it was interesting I ordered the truck with 4.10 gears. Gave him my reasons and he pretty much responded that he mostly ordered all his 2500 gassers with the 3.73 just "because". My guess that is fairly standard for most dealerships.

That's really solid - my EVIC on the 1500 doesn't often read above 17 these days. Might not be apples to apples but still . . .

Slick61 said:

I find it interesting that so many are finding it difficult to find a 2500 crew/mega with the 6.4L & 4.10s... my "local" Ram dealer (about 40 miles away) has a bunch of 2500s with the 6.4L, & virtually all have the 4.10s. I bought my '16 Tradesman crew cab (short bed) 6.4L 4x4 last month. Haven't towed yet, but acceleration/passing is great. So far, I can get about 16-17 mpg on the highway, & about 12-13 around town. It's amazing how quiet the truck is at cruising speed. I came out of a 2000 Super Duty V10 4x4 supercab. There's a few things I don't like about the truck (nothing to do with the drivetrain), but I can live with them. At 70 mph, the engine turns ~1800 rpm. The MDS activation is pretty invisible. The "hemi-tick" takes some getting used to, but overall, am very happy with the purchase.

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I agree. When I bought my 2015 I gave my dealer in tiffin ohio the specs I wanted. 15 minutes later he found the truck with 4 10 gears in Erie PA with every option I wanted. Granted it's a tradesman but it's got a lot of options. I think the dilemma most get into are they may want a higher end model with 4.10s and those are more scarce. So yeah GET The 4.10 gears!

Roger that.

I'm trying to drive a local Mega Cab (3.73s unfortunately) w/ the 6.4 vs the Cummins (obviously 3.42) over the weekend. I know the MC will be slow(er) w/o the 4.10s but it's what's available.

If I pull the trigger, I'm going to have to order the truck.

AzRamLover said:

Roger that.

I'm trying to drive a local Mega Cab (3.73s unfortunately) w/ the 6.4 vs the Cummins (obviously 3.42) over the weekend. I know the MC will be slow(er) w/o the 4.10s but it's what's available.

If I pull the trigger, I'm going to have to order the truck.

Click to expand...

Where are you located?

Skrap said:

Where are you located?

Click to expand...

Dfw metroplex for now