Converting from Double-Eye Leaf Springs to Slipper Springs on my Triple Axle Trailer

Question

Question:

I am looking to convert my triple axle double eye spring trailer to slipper springs. Will the slippers with their mounting be approx. the same ride height as the double eye system. I have 7000 lb. axles with pr6 springs right now. What spring would you recommend for the slipper system? Thank you for the info. Can you tell me the axle center to center distance for the different length equalizers or is there a link in your website somewhere? It looks like my axles are about 33 1/2inch c/c with the double eye springs. I need to keep that measurement the same when I go to slippers. Thanks

asked by: Jeff N

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Expert Reply:

When looking to convert your triple axle double eye spring trailer to slipper springs, I recommend going with the 5-Leaf Slipper Spring, # e74SR, for your 7,000 LB axles. This spring has a 3,500 LB capacity, an axle capacity of 7,000 LBS, and the height of this spring is the same as your current 6-Leaf Double-Eye Spring, # e64SR.

When it comes to whether there will be a change in the ride height when switching from double eye springs to the slipper springs, this is going to depend on the equalizers and hangers that are used.

In order to stay with a 33-1/2 inch center to center distance of your current set-up, you will want to go with the Triple-Axle Trailer Hanger Kit with 12" Long Equalizers, # APTT6SE. Going with our Hanger Kit with 10-1/8" Long Equalizers, # AP302-H302, would decrease your axle spacing and using the Hanger Kit with 13-1/8" Long Equalizers, # AP316-H302, would increase the spacing.

I have attached an article for you on the differences between slipper spring systems and the double-eye spring systems.

expert reply by: Leah S

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Answer 1

The Roadmaster Comfort RIde Leaf Spring Suspension Kit w/ Shocks is going to give you the better ride between the two and is the best option available. The Silent Ride is a nice upgrade but it is not as comprehensive as the Roadmaster. It also…

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Answer 2

Yes there is! You can get exactly that - a Roadmaster Comfort Ride system with shocks for your 8,000 lb axles that are 3 inches in diameter. What you need is the following: - Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Tandem 8K,…

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Answer 3

We don't carry any 7k axle leaf springs at this time but we do have the 8k leaf spring part #DX74XR which is a 7-leaf spring that is 24-7/8 inches in length. If the length matches what you need this would work well for you even though it has a…

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Answer 4

Yes, you can use the Roadmaster Comfort Ride Leaf Spring Suspension Kit 8K part #RM-2460-2580 with 7,000 lb axles.

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Answer 5

Sorry for any confusion that may have arose, but what you want is the U-Bolt Kit for Mounting 8,000-lb, Round Trailer Axles #APUBR-35. These are designed for 3 inch diameter, 8,000 lb axles and are compatible with the Roadmaster Comfort Ride Leaf…

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Answer 6

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of the…

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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

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 9

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 10

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 11

I reached out to Roadmaster about the Comfort Ride Leaf Spring Suspension Kit w/ Shocks #RM-2460-2580 you are looking to install. While they are unable to give exact numbers for the length of travel on the leaf springs the shocks do have 5-1/2"…

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Answer 12

For a single axle trailer, you want the shackle strap to be able to move so that you have the spring deflection needed for your suspension. Angled like the photo or even almost vertical is fine you just don't want the shackle strap to bind and…

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