Comparing SumoSprings and Shocks for Trailers with Tandem 8K Axles

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Question:

We have dual 8k axles that have 7k on each. Yes we are one of the few that know our weights. What do you think about adding SUMO springs and or shocks?

asked by: Paul W

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Expert Reply:

I really like the SumoSprings Trailer Helper Springs, part # SS33HR for underslung or part # SS26MV for overslung axles. The springs do a great job of adding stability to the trailer by absorbing road bumps more as well as reducing sway. A good example of this is when you get passed by a semi and a large gust of wind hits the trailer. This would normally cause the trailer to rock side to side creating sway but with the springs, they will compress when the trailer leans to one side which minimizes the rocking and then in turn sway. The springs also do a good job of helping preserving your existing leaf springs so you won't be replacing them as often.

In regards to shocks like the Roadmaster Comfort Ride Shock Absorbers part # RM-2460, these will do more for absorbing road shocks and creating a smoother ride whereas the SumoSprings will do more for sway. They are both great options and can be used together. If you have more issues with sway start with the SumoSprings or if you have more issue with ride quality start with the shocks.

expert reply by: Conner L

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Answer 1

I would be happy to make a recommendation for upgraded axles and suspension components for your 2018 Grand Design Imagine 2670MK, but first I will need a few measurements from your current components. Starting with the axle you will need to measure…

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Answer 2

I don't have a way to look up what equalizers came on your trailer so you would need to measure the distance between the left and right mounting holes on the equalizer you have now so that we can get the correct fitting one. Right now we only…

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Answer 3

The wet bolt and shackle kit part #LC52SV that you want to use with the Road Armor #LC696740 does not come with leaf spring bushings but we can help with that. I believe what you are looking for is bronze bushings like the part #K71-291-00 as brass…

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Answer 4

Yes, the Lippert 862878 and our part #LC52SV are one and the same. We use our own unique part numbers for many Lippert parts in order to prevent having duplicates.

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Answer 5

The amount of bow that's put into trailer axles like the #7359765 is based on about how much a trailer is typically going to weigh that has a 3,500 lb capacity. So there's a bit of approximation and obviously it can't be totally perfect…

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Answer 6

While trailer axles do feature an upward bend like you are describing, there isn't a particular amount/measurement that is standard across the board. This bend in the axle is designed so that it will straighten under a trailer's loaded…

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Answer 7

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 8

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 9

The Thule WingBar Evo Crossbar System part #TH711520, part #TH480R, and part #THKIT1803 while installed on your 2019 Toyota Highlander will indeed need to be positioned so that the door clip is located 13-1/4" back from the rubber molding…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

I recommend replacing an entire ladder if it's damaged. You'll want to find a replacement based on the height. Such as the Stromberg Carlson #LA-401 that is 99-1/2 inches tall. They can be cut shorter to customize the length if needed.

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Answer 12

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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Comparing SumoSprings and Shocks for Trailers with Tandem 8K Axles

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