6.4 hemi 4500/5500

Discussion in 'Trucks and Trailers' started by Doug Schott, Feb 19, 2018.

  1. Doug Schott

    Doug Schott LawnSite Member
    Messages: 3

    Does anyone on here have exp. with ram 4500/5500 with the 6.4 hemi. What’s your take. How is the power
  2. 360ci

    360ci LawnSite Bronze Member
    Messages: 1,012

    I curious as well. I looked into a gas 4500 a year ago but decided to stick with an older one ton model due to cost of new. I think the 6.4 would be adequate overall. I would have optioned the 4.88 gear ratio (4.44 is standard on 4500). My estimations put it around 2000rpm cruise in top gear at 60mph. I would knowingly lock out the top two overdrives and use 4th which takes it up to about 2300rpm and should allow for effortless cruise while under load. Diesel adds $10K to the price, or $6K with manual trans. If Ram offered the 6 speed manual with the 6.4 I'd be all over it.
  3. wrtenterprises

    wrtenterprises LawnSite Senior Member
    Messages: 331

    I have a 2014 3500 dump truck with the 6.4 Hemi. It's a beast for a gasser, I highly recommend it. I only have 15K on the truck, but its been problem free for 3+ years. The 6.4 has plenty of torque, does reasonably well on gas, and mine at least is quiet.....
    360ci likes this.

    BJWLAWNCARE LawnSite Senior Member
    Messages: 626

    I also have a 2014 6.4 3500. I have almost 30k on mine. It's a beast. Get about 7-8 mpg with an aluminum body. Weighs less than 8500 pounds. It blows my 6.2 ford f-350 out of the water.
  5. Ronald4

    Ronald4 LawnSite Member
    Messages: 1

    Well I just traded my 2015 ram 2500 6.4 in and would never get another. Two engines and was about to have to get the transmission fixed from over heating at 125,000 miles. Once I hit 100,000 miles the heat went out, seat heater stopped working, engine over heated under any heavy loads, and transmission over heating issue started. All services were done by dealer and on time, truck was maintained perfectly. This a picture of it days before trading it. Apart of the cummins club now.

    Mark Oomkes likes this.
  6. TPendagast

    TPendagast LawnSite Fanatic
    Messages: 14,566

    I don’t think so

    7-8 mpg? That’s 3-4 mpgs worse fuel mileage than the ford with a few ounces more power
    That’s a waste
  7. Mark Oomkes

    Mark Oomkes LawnSite Fanatic
    Messages: 16,817

    I have the 3.73's in my 2500 and they suck. I would agree completely with going with the 4.88s in that size truck. I would\will never buy another 2500\3500 with that high of a gear ratio. Shouldn't even be an option for a truck with a plow prep\trailer tow package. Sales guy told me to run it in 4th whenever we are towing or loaded. That right there tells me they know the gear ratio is wrong and too many gears in the tranny.

    Then again, I'll never buy another 2500 since they won't put an Aisin in it. Idiots won't even put it in a 2500 with a Cummins.

    I haven't bought another 4500\5500 for just this reason...diesel adds too much to the cost for the capacity and longevity of the rest of the truck. A medium duty will do so much better in the long run. I am considering a DRW 3500, but have no idea if I would get a gasser or Cummins...I really don't like my Hemi after running diesels for so long. Not that it's bad, it's just different.
    FromUndaChz and 360ci like this.

    BJWLAWNCARE LawnSite Senior Member
    Messages: 626

    Lol....I have both.

    They get the same gas mileage.
  9. TPendagast

    TPendagast LawnSite Fanatic
    Messages: 14,566

    No... 6.2 gets 10.5 on the low and 12.5 on the high
    Mixed driving including plowing and towing
    We have 5 in our fleet , drifferent drivers
    So if you’re getting 8 from a 6.2 you’re doing something wrong

    The lol is on you
  10. TPendagast

    TPendagast LawnSite Fanatic
    Messages: 14,566

    I’m not sure what you’re saying here a 4500-5500 model IS medium duty truck

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