Correct SumoSprings Trailer Helper Springs For 5k Axles & Should Trailer be Hitched For Measurement

Question

Question:

I want to add the SumoSprings Trailer helper springs to our fifth wheel and will order them from eTrailer in a couple of days. When I do the measurements from the spring plate to the frame rail, do I need to hook our fifth wheel up to the truck, and raise our landing gear in order to put all the trailer weight on the ground? Or do I take a measurement just as it sits, level, but with weight on the landing gear? Hope the question makes sense! Our 2020 Jayco Eagle HT fifth wheel has gross axle weight ratings of 5,145 pounds, so I’m assuming I would need the heavier rated SumoSprings for this application—is that correct? Also, I saw in the description for the product that SumoSprings would “raise the height of the trailer”. I cannot afford for my fifth wheel to be any higher off the ground as it will barely fit under our RV port now. How much would it raise it, please? Thanks for the reply!

asked by: Rick E

0

Expert Reply:

Those are good questions, and let's go ahead and start with the correct helper springs; since you have axles that are just over 5,000 lbs you do want the heavier option:

- SumoSprings Trailer Helper Springs - 5K to 8K - Overslung # SS26MV

As for the measurement, I reached out to SumoSprings, and what they said was when taking that measurement you do want to be hitched, and the measurement is best taken on how you would use the trailer, so long as it is level, which means your landing gear does not need to be down.

I also asked them about the lift, and they said it won't give much lift if at all; essentially what raising the ride height means is that when your trailer frame lowers from weight or sway, the SumoSprings # SS26MV engage, so the ride height will be "higher" than without the springs.

expert reply by: Kyle S

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Answer 1

Hey Frank, thanks for reaching out! What Dexter Axle means by this is that you want the grease zerk fitting from the wet bolts in the Dexter E-Z Flex Suspension Kit #K71-653-00 to face the outside of the trailer, rather than under the trailer. I see…

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Answer 2

Hey Jason, it's pretty common for replacement leaf springs to be slightly shorter than what they replace as springs tend to stretch/flatten overtime as they wear out so while you are on the right track 3/4 of an inch is a bit too much of a…

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Answer 3

You do want to measure the springs with the weight off of them because they will flatten out with the weight added. Over time, springs can flatten a bit and that is why you are getting the 26 inch measurement. Based on the measurements you provided,…

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Answer 4

Hello Dave, thanks for reaching out. Typically broken leaf springs are the result of an overloaded trailer. One thing you could try here is going with higher rated leaf springs. It could be the weight of your camper is right at the max limit for your…

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Answer 5

Hey Bekzod, So while we don't have a way of knowing the exact leaf springs for your Arctic Wolf 5th wheel trailer, I can help you determine the correct replacements. You do have to take a measurement, though it's pretty easy, as all you need…

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Answer 6

There is no exact way to determine the leaf spring length. The best way to determine the length for a replacement is by measuring the existing leaf springs. The hanger distance and shackle length can help you get a good idea, but you're looking…

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Answer 7

The SumoSprings Solo Custom Helper Springs #SSR-210-47 referenced in your question are actually jounce-style springs, not air bags, so they do not feature a valve that could be used to fill them with air. These are maintenance free springs that…

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Answer 8

Ideally you want your trailer to be towed as level possible and still have at least 6 inches of clearance between overhang of the trailer and the bed rails of the truck. Since trucks tend to keep getting built taller and taller this can prove to be…

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Answer 9

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 10

Correct, if the distance from the ground to the bottom of the skid plate on the pin box is 2" lower than the distance from the ground to the top of the skid plate on the 5th wheel hitch after all adjustments to the pin box and 5th wheel hitch…

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Answer 11

It does sound like you have found some clear damage to your 5th wheel trailer's leaf springs that will require attention. Uneven tire wear can be caused by a number of things - incorrect pressure, inadequate weight on the axle or a visibly…

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Answer 12

The shock mounts for trailer suspension are not available as replacement or independent parts. You would need to purchase kit #LC281255 or #LC281281. Another option that bolts to the frame of a 5th wheel are the Timbren Trailer Suspension Enhancement…

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Correct SumoSprings Trailer Helper Springs For 5k Axles & Should Trailer be Hitched For Measurement

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