Recommended Way to Lift 5th Wheel Trailer For More Bed Rail Clearance

Question

Question:

I just purchased a 5th wheel. First one. I have a pullrite superglide hitch on a puck system. Pullrite says this hitch is not height adjustable. On level ground my 5th wheel is perfectly level, but I only have 3.5 inches of clearance over my bed rails. I if my pinbox down to get the proper clearance, I am afraid my trailer wont be level. Any suggestions? Or will 3 inches raised on the pin box not make a significant difference on a 35 foot 5th wheel. Thanks!!!

asked by: Mark J

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Expert Reply:

Three and a half inches is definitely not enough bed rail clearance (you want at least 5" at minimum), so you'll want to adjust your pin box, but you're also right that you won't be level, and your 5th wheel trailer will be nose high. That is not something you want either as it can really affect your trailer's suspension and handling when you are towing.

The tires can wear quicker, bearings can overheat, and even axles can bend due to the weight being uneven towards the rear of your rig. Now, that's not to say all of these things are going to happen after your first trip - they aren't. But over time suspension issues are going to crop up, so what you can do is add some lift, and there are a couple options for this:

- Dexter Trailer Springs Over-Under Conversion Kit # K71-385-00

- Correct Track Trailer Alignment and Lift Kit - Tandem Axle # RR23QX

I'm assuming you have a tandem axle trailer and that you have 3" diameter axles (which are generally 5,200 lb to 7,000 lb axles). The Over/Under kit flips the leaf springs so they go from below the axle to above the axle, lifting your trailer approximately the same amount as your axle's diameter plus the height of the leaf spring pack.

Some 5th wheels have this already though so if that's the case with yours, the Correct Track kit can add 2-1/4" of height. This has specific requirements though as you need 3" wide x 3-3/4" tall hangers or 3" wide x 5" tall hangers.

expert reply by: Kyle S

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Answer 1

The best way to lift your Jayco Eagle is called an over/under conversion kit, which moves your trailer's leaf springs to the top of your axle and lifts your trailer approximately the same amount as your axle's diameter plus the height…

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Answer 2

There are a few lift kits available, but they are all for very specific Torflex model torsion axles so you'll first need to verify what you have on the trailer. #10 Torflex axles with 2,300 to 4,000-lb capacities - Torflex Lift Kit -…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

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…

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Answer 5

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion…

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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

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 8

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 9

Thanks for the pictures! Since your 2022 Grand Design Reflection 303RLS came with the CRE3000 equalizers you will need three of the MORryde X-Factor Crossmember item #MR33WR. It looks like you have the standard 3" wide frame hanger so all of the…

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Answer 10

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 11

Hey Robert, for a 5,200 lb Dexter Torflex axle like what you have we have the Dexter lift kit part #K71-724-02 which will give you a lift of 2-7/8 inches.

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Answer 12

The spring hanger placement is going to be determined by your axle spacing. For example, if your axles are spaced 33 inches apart, as shown in the attached diagram, a 7K axle slipper spring, like #e74SR, requires a distance of 28-1/2 inches between…

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