Correct Slipper Spring for my 16 ft. Aluminum Jon Boat Trailer

Question

Question:

I have an old boat trailer with 1.5” dia axle that needs new springs. There are no ID numbers anywhere on the trailer or axle, but the old springs are 4 leaf springs. The trailer is carrying a 16 ft aluminum Jon boat made of 1/8” aluminum. Would these springs be okay to use?

asked by: Matthew

0

Expert Reply:

Yes as long as the dimensions are the same you will have no issues with using the 4-Leaf Slipper Spring w/ Radius End part # SP-179275. Most bare 16 ft jons come in under 500 lbs. so the capacity will be perfect for you even if you load it down with gear.

I have attached the installation video I made on the springs for you to check out.

expert reply by: Randy B

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Answer 1

To verify the 3-Leaf Slipper Spring #e99SR will fit your trailer you will need to take the weight off your current leaf spring so you can compare it with the measurements. Please see the image below to know where to measure and know the lengths A, B…

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Answer 2

Based on the information I could find on your 2023 Jayco Jayfeather 30QB travel trailer it appears you are going to have 4,400lb axles. You are going to need to verify the diameter of your current axles as some manufacturers like Lippert use a…

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Answer 3

Leaf springs typically have the part #stamped on the strap that holds the leafs together at one end of the shorter leafs, or it is painted on the concave side of the springs. The part number can then be used to determine the capacity of the springs.…

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Answer 4

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 5

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 6

Yes, our Dexter leaf spring part #DX74XR is the same as the part number 072-079-00. This is a 7-leaf spring for an 8,000 lb trailer axle that is 24-7/8 inches.

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Answer 7

The Dexter 072-078-00 is a 2,200 lb capacity leaf spring. You can use a higher capacity leaf spring, however it won't increase the capacity of your trailer as the axle is still rated for that max capacity of 4,400 lbs. My recommendation for a…

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Answer 8

As long as the weight capacity is inline with your trailer/axle rating and the measurements match your current springs, the number of leaves in a spring pack does not matter. The difference between a 3 and 4 leaf spring pack within the same weight…

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Answer 9

You are indeed right to think this way. When picking out the appropriate leaf springs for your custom built trailer you will want to choose them based on what the actual loaded weight of the trailer will be. Just make sure that the leaf springs have…

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Answer 10

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 11

If you are wanting to go to higher capacity leaf springs I would advise against it. The problem is that since the trailer axle is rated for 3,500 pounds you won't gain any additional capacity by switching to higher capacity springs. What it will…

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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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Correct Slipper Spring for my 16 ft. Aluminum Jon Boat Trailer

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