5th wheel toy hauler, gas or diesel?

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P B Casterlin

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Do your research and you will see that sometimes the Diesel actually deducts from the Cargo Carrying Capacity of the truck. In my opinion Diesels are great for towing but if you are only an occasional tower and if you are in the mountains a lot a gas engine set up properly should work fine. Make sure of the capacities of the truck not just the tow rating the Cargo Capacity really makes a difference! Look up Big truck Big RV on Youtube he has a lot of info on this subjuect
I have looked at that. The fifth wheel toy haulers we have been looking at are all around 17,000 gvw. That is right about the limit of a 3500 drw gas with a 4.10 rear.

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Firebird

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I have looked at that. The fifth wheel toy haulers we have been looking at are all around 17,000 gvw. That is right about the limit of a 3500 drw gas with a 4.10 rear.

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Yeah, that's Cummins 1 ton territory
 

dhay13

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I'd say you can go over 10,000lbs pretty comfortably with a 6.4 and 4.10's. 17,000 is definitely diesel territory though. I towed my step-sons 9300lb TT with no problem but didn't really hit any hills. Today I took my boat to the CAT scale and we have a long, steep hill here. I had no problem at all keeping the 45 MPH speed limit. I was maybe 1/2 throttle turning just under 3500 RPM. The hill is 'supposed' to be a mile long and about a 7% grade. The boat/trailer weighed 8860lbs. I would have felt comfortable even at 10,000lbs I think.
 

farmallboy

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I'd say you can go over 10,000lbs pretty comfortably with a 6.4 and 4.10's. 17,000 is definitely diesel territory though. I towed my step-sons 9300lb TT with no problem but didn't really hit any hills. Today I took my boat to the CAT scale and we have a long, steep hill here. I had no problem at all keeping the 45 MPH speed limit. I was maybe 1/2 throttle turning just under 3500 RPM. The hill is 'supposed' to be a mile long and about a 7% grade. The boat/trailer weighed 8860lbs. I would have felt comfortable even at 10,000lbs I think.

I have same drivetrain and have but 10k a couple times with my 2019 tradesman.

I'll agree with this all. No taxing hills but the truck had plenty more "go". I'm sure if I had 12000# to tow 1200 miles I might be upset at cost of gas but I don't do that so I don't care.
 

P B Casterlin

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No matter how I look at it, I have to replace my current truck. With 3.73's it would be a strain even if we went with a lighter 5th wheel.

What surprises me is the fact that the dually option is only another $1700 and increases the payload and GCWR substantially. I am thinking I could get away with 3.73's in a HO diesel dually.

I recently read a rumor that Ram is going with Allison transmissions for 2023. If that is the case I might wait for that!


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Badger 13

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If your going to be doing retirement traveling, did you ever consider something bigger, but just as easy to drive ? Freightliner "business class" makes an excellent tow vehicle for RV's. Just a thought.

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P B Casterlin

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If your going to be doing retirement traveling, did you ever consider something bigger, but just as easy to drive ? Freightliner "business class" makes an excellent tow vehicle for RV's. Just a thought.

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I have seen those but they look expensive. I will do some research.

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68PowerWagon

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No matter how I look at it, I have to replace my current truck. With 3.73's it would be a strain even if we went with a lighter 5th wheel.

What surprises me is the fact that the dually option is only another $1700 and increases the payload and GCWR substantially. I am thinking I could get away with 3.73's in a HO diesel dually.

I recently read a rumor that Ram is going with Allison transmissions for 2023. If that is the case I might wait for that!


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Yeah a HO with 3.73 gears still gets you around 25k pound towing capacity. I am really thinking of upgrading my 2500 to a 3500 after they come out with a different transmission. To keep up with the competition they are going to have to come out with some kind of 8-10 speed. Whether Asin builds it for them, or if they grab that same Allison that they are using in the Chevy's. I would almost prefer that cause it has already proven itself. I always get a little nervous with new stuff cause it usually takes a couple years for them to work out the bugs.
 

Bearcatrp

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Been drooling over the freightliner rv pullers. The smaller ones are close to the price of a new 1 ton dually. Am on the hunt for a 1 ton diesel and keep looking at the freight liners.
 

Irishthreeper

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I currently own a 2018 Ram 2500 with the 6.4 and 3.73 rear. I am looking to buy a 5th wheel toy-hauler sometime within the next year and will have to upgrade from my current truck. I don't really want the added expense of a diesel engine if I can avoid it. I have been looking at the towing specs for a new Ram 3500 crew cab dually 6.4 with a 4.10 rear. According to the specs on the Ram website, the maximum trailer weight would be 17, 230 with a GCWR of 25,000.
Would this be enough truck?
You’ll be fine as long as you pick the right fiver. Don’t push the load you can pull and avoid a fiver with a very heavy hitch weight. My new 2500 with the 6.4 and 4.10’s pulls our’s very well, probably about 10,500 or so loaded. Hitch weight is 1250 and the slider hitch with adaptor probably adds another 200 lbs. Over-all, I’m guessing I’m 800-1,000 lbs under my payload rating, which is 3200.
 

MantaRay67

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I have a 21 Power Wagon on 37"s and have added Timbrens to tow a 26' Travel trailer.
Make the leap to diesel, you'll be glad you did. The reliability, longevity, and mileage of the drive train will more than make-up for any premium you pay at purchase. For anything other than wheeling in the PW, everything else is comprimise.
 

Gerry Sudman

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Several years ago I had a Chevy diesel towing a 34' 5th wheel. My friend had a Chevy gasser pulling a 30' 5th wheel. Traveling together my friend pulled into a gas station after 160 miles. I still had 2/3 of a tank remaining. He replaced his gasser with a diesel the next trip!
 

steveTS

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I should also add that this will be a retirement gig and we will probably be going to Arizona from Pennsylvania and be gone at least six months out of the year. Im sure there will be some excursions from AZ to other points of interest while we are away from PA.

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If thanking that a 3500 for anything over 15,000 pounds would be the way to go I absolutely would be looking at diesel. I just returned from glacier national Park with my 1500 5.7 L. I was towing a 22 foot grand design which had a trailer weight of around 8700 pounds filled. My 1500 didn’t even blink an eye going up those mountains with that. I’ve since upgraded to a 33 foot trailer with a fifth wheel.I still have my 1500 but I put in 5000 pound airbags in the rear axle to help support the new weight. My combined weights are 15,750 roughly. The truck and take 17,000 so I’m pretty close. But there’s no way in hell I would ever try and take this trailer up any kind of Appalachian mountains or back up in the glacier national or the mountains of the northwest United States. Absolutely go with diesel it has three times the torque. It’ll also last you a lot longer than a gas engine. If this is your retirement gig think long term.
 

steveTS

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I forgot to add my gas mileage is gone into the toilet. Where I was getting 10 1/2 to 11 miles per gallon with a 22 footer with a new 33 foot fifth wheel I’ve dropped 28 or 9 miles per gallon. I am in the process of buying a diesel 2500.
 

dhay13

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If thanking that a 3500 for anything over 15,000 pounds would be the way to go I absolutely would be looking at diesel. I just returned from glacier national Park with my 1500 5.7 L. I was towing a 22 foot grand design which had a trailer weight of around 8700 pounds filled. My 1500 didn’t even blink an eye going up those mountains with that. I’ve since upgraded to a 33 foot trailer with a fifth wheel.I still have my 1500 but I put in 5000 pound airbags in the rear axle to help support the new weight. My combined weights are 15,750 roughly. The truck and take 17,000 so I’m pretty close. But there’s no way in hell I would ever try and take this trailer up any kind of Appalachian mountains or back up in the glacier national or the mountains of the northwest United States. Absolutely go with diesel it has three times the torque. It’ll also last you a lot longer than a gas engine. If this is your retirement gig think long term.
Curious what model Grand Design you had that weighed 8800lbs? My son has a 2018 Imagine 2670MK (26')(2 slideouts) and the GVWR was about 8600lbs. We weighed it on the CAT scales and it was 8100lbs and he was living in it so it was loaded pretty heavy. Dry weight was listed as 6600lbs. My step-son also just bought a 2021 Grand Design Imagine 3250BH (32') and it weighed 9300lbs empty (except for the 53 gallons the dealer left in the fresh water tank). His GVWR is about 10,200. Just wondering if your 22'er was really 8800lbs? BTW-with my 2013 1500 5.7 3.55's towing the 2670MK I got about 6 MPG. My son towed it with his 2018 2500 6.4 4.10's and averaged about 8 MPG over 9000 mile towing it
 

steveTS

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I had a 22MLE, dry weight was 7700LBS. now I'm at 10,,995 with my 295RL. I traded for a 2021 2500 and am very happy and can't wait to try out the beastly 6.2L diesel. Hoping for 12+mpg towing.
 

OC455

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I had a 22MLE, dry weight was 7700LBS. now I'm at 10,,995 with my 295RL. I traded for a 2021 2500 and am very happy and can't wait to try out the beastly 6.2L diesel. Hoping for 12+mpg towing.
6.2 diesel??? Cummins is the 6.7L. A Grand Design 22MLE's dry weight is less than 5200lbs...and it's GRVW is 6995lbs. 8700lbs. loaded? Are you sure? You're 1700lbs. overloaded on you trailer...

Smart move on going to a 2500 to pull the 5th wheel. Your 1500 isn't optimal for towing a 5'ver. Regardless if your 5th wheel is half-ton towable....it's really not. Your pin weight of your 5th wheel and your 5th wheel hitch just ate up all your payload...
 

dhay13

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6.2 diesel??? Cummins is the 6.7L. A Grand Design 22MLE's dry weight is less than 5200lbs...and it's GRVW is 6995lbs. 8700lbs. loaded? Are you sure? You're 1700lbs. overloaded on you trailer...

Smart move on going to a 2500 to pull the 5th wheel. Your 1500 isn't optimal for towing a 5'ver. Regardless if your 5th wheel is half-ton towable....it's really not. Your pin weight of your 5th wheel and your 5th wheel hitch just ate up all your payload...
I wondered the same thing. I looked up his TT and the numbers weren't anywhere close to his. My son's is 4' longer with 2 slides and weighs less than he posted and his is pretty heavy for a 26'er
 

OC455

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I wondered the same thing. I looked up his TT and the numbers weren't anywhere close to his. My son's is 4' longer with 2 slides and weighs less than he posted and his is pretty heavy for a 26'er
Yeah, not trying to bash anyone, just looked like his weights were really heavy for such a small tow behind. I check the GD sight to see what updates they have made so when I go looking for a 5'ver, I have all the info I need.

Really liking the new 28BH...they come with a new 16 cu. ft. side by side fridge. It got a little heavier but not by much.

And the 278BH got 10 cu. ft. fridge....still leaning towards the 278BH. Lighter pin weight and a couple more storage areas than the 28BH.
 
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