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Old 09-28-2015, 08:11 AM   #1
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Backing Up An Incline? How Steep?

Backing Up An Incline? How Steep is Too Steep?

We just purchased a 2010 Cardinal 40' weighing in (supposedly) at 15900 lbs. I have a new 2015 Dodge Ram 3500 4x4 with a Cummins 6.7 385hp and 865fp torque with Aisin Trans and 3:42 rear end.

Our driveway up to our house is fairly steep. I'd like to keep our 5th wheel beside our house where I kept our 40' diesel pusher.
I had no trouble driving the DP up into our pad, but wondered about the Truck and 5th Wheel combination.

I suspect I'd have to be in 4x4 Low if anything.

Just wondering what your experiences have told/shown you?
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Old 09-28-2015, 08:26 AM   #2
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Here are a couple of pictures.

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Old 09-28-2015, 08:49 AM   #3
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I use 4-low for backing up steep spots. I just don't turn it sharply on pavement.
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Old 09-28-2015, 08:54 AM   #4
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Watch the distance from the top of your truck bed to the bottom of the trailer. My drive way is twice as steep and it comes close, flat road driving I have 9" of room.
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Old 09-28-2015, 09:00 AM   #5
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I have auto leveling on my truck so I'd probably have to deflate the bags to make sure I have clearance once I get to my pad at the top.
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Old 09-28-2015, 11:15 AM   #6
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As far as the truck itself, should be an easy deal--plenty of power. But with the 3.42 axle, 4low is probably a good suggestion. Clearances over the dip and curves might be close...
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Old 09-28-2015, 11:35 AM   #7
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Tough to tell how steep the incline is from the picture but I believe your Cummins will push the trailer up that incline very handily. You may wish to use 4 low for the steeper part but the surface is hard so the trailer should push well.

Of concern would be the transition at the bottom and will the back bumper on the trailer touch? Does not look like it will from the picture. The other issue (but less so) is the tansition at the top. Will the landing gear or jacks drag (probably not)? Or will the top of the box touch the underside of the trailer (THIS COULD BE TIGHT!!).

Advantage of using 4 low is you can 'crawl' so things that happen will be slower.

Take your time for the first few times. Stop often at pinch points and check clearances or have someone help you. Even if you have help I would stop to check to ensure you are happy with the way things are going.
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Old 09-28-2015, 12:16 PM   #8
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Your truck will have zero issue in the normal gear selector position. No need for 4X4 low. I see concrete so you will not get stuck if that was what you were worried about. You will have plenty of power.

But you may not have the bed rail clearance. Be careful as the bed rail clearance will disappear fast and the 5er will be sitting on the bed rail before you know it.

I agree you can not tell the incline from the picture. You might need boards to fill in the gap from the street to you driveway to gain needed clearance.

Good luck.
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Old 09-28-2015, 05:33 PM   #9
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I'll try to take more specific photos when I get home. Once the 5er starts to get on my pad at the top beside the house is when the truck will still be on the incline.
That will be my main worry from what I hear you guys say.


Thanks to all so far. I appreciate it!!!


Its funny how you can be older in years and still be such a NEWB when getting into something new.


For 10 years I used to back my boat up in the dark after getting a little pie-eyed all day on the lake in the sun. I could almost do it blindfolded and back the boat up to a ladder that was left for my company to get in the boat for the ride down. They used to get out and bow saying "You are the Master" LOL
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Old 09-28-2015, 09:16 PM   #10
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I have auto leveling on my truck so I'd probably have to deflate the bags to make sure I have clearance once I get to my pad at the top.

Bags don't deflate.
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Old 09-28-2015, 09:37 PM   #11
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Quote:
Originally Posted by Cummins12V98 View Post
Bags don't deflate.
Thus my reason for asking questions.

Foot is now removed from mouth. LOL
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Old 09-30-2015, 08:00 PM   #12
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Thus my reason for asking questions.

Foot is now removed from mouth. LOL

I wish they did! I think the 2500's do.
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