Recommended Clearance Dimensions for 5th Wheel Trailer Towing

Question

Question:

safe distace from back of cab to front of 5th wheel trailer and referece also distace from front of truck bed to 5th wheel hitch in truck bed

asked by: Peewee R

0

Expert Reply:

You can refer to the linked diagram to see the recommended minimum clearance dimensions for 5th wheel trailer towing.

The specific design of the trailer's nose - is it tapered for better turning clearance or is it a flat-nose design? - affects your required cab-to-overhang clearance. You can use this formula:

(A + B) - C = Clearance

A = Distance from center of fifth wheel hitch jaw to truck cab
B = Length of Sidewinder arm (16K = 22", 19K = 22")
C = Width of trailer divided by 2 (to get half)

In cases where there is not enough height between the bottom of the trailer overhang and the top of the bed rails it is possible to install an axle over-under kit (sometimes called an axle flip) that reverses the positions of the leaf spring stack and axles, lifting the trailer's height. Kits # K71-384-00 and # K71-385-00 do this for 2-3/8-inch and 3-inch axle diameters. The height gain they provide is equal to the axle diameter plus the height of the leaf spring stack.

expert reply by: Adam R

0

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Answer 1

I believe you are simply asking the length of the king pin on the Trailair Rota-Flex 5th Wheel Pin Box #LC328330. I reached out to the manufacturer who said that the king pin on this pin box measured 3.29 inches. I have added a photo showing other…

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Answer 2

Yes, the Curt Assure brake controller part #C49UR can work on your 1992 Ford F-350. All you need is the correct install harness part #C51312 which plugs in under the truck dash.

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Answer 3

There are a few different gooseneck options available for your 1993 Ford F-350 with overload springs, see link. But if you want to go with an industry leader I recommend the B&W Turnover ball #BWGNRK1110. The B&W products are solid,…

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Answer 4

The first step is to remove the wedge that keeps the hitch from rotating at the fifth-wheel hitch in the bed of the truck. You will then need to install two 3/4 inch X 5-1/2 inch grade 5 bolts washers lock washers and nuts in the location at the rear…

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Answer 5

Fifth Wheel hitches are not universal fits, so you will want to make sure that your hitch is compatible with your 2015 Ram 3500. Part RVK3000. That is an older Companion hitch that is now obsolete. You can use that on your truck if you have a…

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Answer 6

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 7

I do have some potential solutions for you but there isn't a safe way to extend a 5th wheel trailer pin box. An extension would add additional stress to the trailer frame leading to damage or failure. In order to move the pivot point of a trailer…

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Answer 8

If you take a look at the linked diagram you can see the minimum recommended clearance distances between truck and trailer for 5th wheel towing. It is recommended to have at least 5-inches from the top of the bed rails to the bottom of the trailer…

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