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Thread: Towing through I70 CO
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10-11-2022, 12:46 PM #1
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Towing through I70 CO
Hi. I hope this is the correct forum for this question, if you feel another spot would be more appropriate please feel free to share.
We are towing the Solitude 390RK with a Dodge Ram 2500 turbo diesel. We need to get to Grand Junction, CO via I-70 from Denver area. We are a bit concerned about the grades of the highway, we have never pulled that steep. Does anyone have any thoughts/suggestions for this route? Any opinions of alternative routes?
Thanks for the help!
Michelle
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10-11-2022, 01:39 PM #2
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Would be nice to know a bit more about your tow vehicle. Assuming a 6.7L CTD. Assuming additional mods to support the pin weight. Don't want this to turn into a GVWR discussion. There's plenty of that already on the forum.
The Ram 2500 will pull the weight just fine. I'd slow down both up hill and down hill. Use a lower gear, no need to be in a hurry. Respect the curves. Keep the exhaust brake on going down hill to help reduce chance of overheating the brakes.
Welcome to the forum.Ken & Tammy
Union Valley, TX
2021 GD Reflection 303RLS 5th Wheel
2019 Ram 2500 6.7L Cummins 4x4
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10-11-2022, 01:54 PM #3
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Thank you for the response. We have 6.7L Cummins Turbo Diesel, that fully supports pin wt wo mods. Our truck is rated to tow 19,300lbs and our RV weights 16,800 so we are concerned about our ability to climb such steep grades.
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10-11-2022, 02:19 PM #4
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Just a heads up...the towing capacity of the truck is not the determining factor here. The payload capacity of the truck is what may be in question. That trailer has around 2900 lbs of pin weight when it's empty.....new from the factory. The pin weight will be way over that number when the trailer is loaded. You might want to check the sticker on the driver side door post to see what your truck's actual payload capacity is. It will probably be labeled something like "Cargo Carrying Capacity"
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Excessive Payload is a Wonderful Thing
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10-11-2022, 05:13 PM #5
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I agree with others that I doubt your suspension (and possibly axle) is rated for that load. My only concern would be axle because those get hot pulling mountains - you want to be under the axle load rating. If you’re under GVWR and payload, you’re likely under axle too. It’s GCWR that plays into towing rating - a different set of numbers. I digress.
Towed that recently. You pretty much have to go over the mountains if you are going through there, and I70 is fine. If going west, it’s a loooooong but more gradual grade versus going east. Slow down, stay right, monitor temps. Make sure you’re under the rear axle rating if you want that to stay cool. But most important - don’t try to go down (much) faster than you are capable of going up, and use the engine to brake.
On our trip, we had plenty of power to accelerate if we wanted going up, and I’m not sure I ever touched the actual brakes going down. The transmission started to warm up when we got above 10k ft so I slowed down from 60 to 45 for the last couple miles and had no issues. Your 6.7 will likely also have enough power to accelerate at any point on that route, and to hold the load back going down. .2022 Transcend Xplor 240ML
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10-11-2022, 05:23 PM #6
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Normally, the order of progression for overload is this. Normally, you will reach the payload capacity first. Once you go over the payload capacity, the truck is automatically over the GVWR. The next in line if someone keeps adding more weight is the RAWR. Once that reaches overloaded weight, then it's usually the tires that will be over the Tire load capacity rating. Obviously, I'm talking about OEM tires and or tires that have the same load capacity rating as the OEM tires
2016 F350 CrewCab Dually
2018 Momentum 394M...Heavily Modded!
2023 Suzuki GSX-S1000 GT+
Excessive Payload is a Wonderful Thing
"If it ain't fast....It ain't Fun"
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10-11-2022, 06:48 PM #7
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Moved to Campgrounds, Destinations and RV Trip Planning.
As others have said, the loaded pin weight on that trailer will be around 3,850 lbs. - way too much for a 3/4-ton truck. Have you had your setup across the scales with and without the trailer (loaded, of course) to determine what your actual pin weight is?
Rob
EDIT: I would highly recommend purchasing and downloading a copy of The Mountain Directory and check all your routes very carefully.
https://mountaindirectory.com/Last edited by Second Chance; 10-11-2022 at 06:50 PM. Reason: Add link
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10-11-2022, 07:46 PM #8
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2016 F350 CrewCab Dually
2018 Momentum 394M...Heavily Modded!
2023 Suzuki GSX-S1000 GT+
Excessive Payload is a Wonderful Thing
"If it ain't fast....It ain't Fun"
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10-11-2022, 08:00 PM #9
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Larry KE4DMG
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10-12-2022, 01:23 PM #10
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I just drove that route last weekend and I have many time with both a Dodge 2500 6.7 Cummins pulling a 35' KZ 5th wheel and with my Ford F450 pulling my 349M.
As others have said, you should be fine climbing. If you have an EGT gauge, I'd keep an eye on it.
When I do that route, going up is no big deal. It's the downgrades that will test your exhaust brake so make sure it's working well.
You'll be able to test it first on the descent past Floyd Hill. The real test will be after the Eisenhauer Tunnel into Silverthorne.
If you handle that ok, then the descent into Vail should be ok. Just watch for the right hand decreasing radius corner near 39.578392, -106.249427 as they have construction going on in that area right now.signature
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