Tips on Leveling a 5th Wheel Trailer Towed by a 2012 Chevy Silverado Dually

Question

Question:

will the axel under spring change the handling of the truck and trailer,trailer is about 40 ft. long

asked by: Luther

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Expert Reply:

First, before changing the suspension on the trailer, you can adjust the height of the pin box on the trailer and the height of the 5th wheel hitch up and down. If making these adjustments is not enough then I recommend moving on to an over under conversion kit like # K71-385-00.

Using a kit like this does raise the trailer however it also makes the trailer more susceptible to sway. The ride will also feel different although in a dually I am not sure how much you will notice the ride. But if a 40 foot trailer sways you would know it. On a 5th wheel trailer the best way to stop trailer sway is to slow down. Speeding up will make it worse.

expert reply by: Michael H

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Answer 1

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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Answer 2

Over under kits can basically be installed on any axle as long as the axle diameter matches what the kit is designed for. The part #K71-385-00 would work if the axles on your trailer were 3 inches in diameter. Since your trailer weighs 14,000 lbs you…

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Answer 3

Increasing the tire and wheel size can increase the height of the trailer but it's usually quite minimal. Before you do anything else you should see if the pin box can be adjusted. Although you have to be careful here since This will lower the…

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Answer 4

Since your trailer has already had the axles flipped for increase ride height I would be reluctant to recommend you lift the trailer any more. The higher the trailer sits the higher the center of gravity is and the more likely the trailer would be to…

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Answer 5

When a camper is loaded on a pickup truck bed there will be a gap between the truck bed rails and the underside of the camper as you show in your photo. No worries there. For your camper tie-downs, it loos as though you have attached the rear ones…

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Answer 6

I contacted MORryde and this does happen from time to time as the weight of the trailer can spread out the axles due to downward pressure on the springs/suspension. Odds are the 35" wheel base #MR27ZR will be the correct one for you, but they…

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Answer 7

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 8

Hey Patrick, so for your leaf spring upgrade I am going to need to know a couple of things before I can get you over to the right part. Specifically, the length from eye to eye, the spring width, leaf thickness, and the number of leaves. From here I…

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Answer 9

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

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Answer 10

Yes, axle spread and wheel base by definition are the same measurements. You will measure from the center of one axle to the center of the 2nd axle to determine what you axle spread is. This may be difficult as some wheels and covers will make this…

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Answer 11

Yes, going from a 4 leaf to a 6 leaf spring would add slightly to your ride height. For example, if the current 4 leaf spring has 3/8" thick leaves, and you go to a 6 leaf spring with 3/8" thick leaves, you would be adding 3/4" of…

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