What Kind of Steel are Trailer Leaf Springs Made of

Question

Question:

Was wondering if you know what kind of steel these are made of

asked by: Steve L

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Expert Reply:

The steel of the trailer leaf springs like part # SP-113275 is spring steel which is designed to flex and go back to it's original shape. Spring steel is typically low-alloy manganese, medium carbon steel.

expert reply by: Jameson C

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Answer 1

The width of the Roadmaster Bushing part #RM47GR is 1.75 inches.

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Answer 2

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 3

You can use leaf springs that are rated higher than the axle without any issues as long as they measure the correct measurement for your trailer. For example the 6-leaf double eye spring for 7,000 lb axles part #e64SR measures 24-7/8" eye to…

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Answer 4

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 5

Hey Michael! I can definitely help you find replacement leaf springs and hardware for your travel trailer. However, we will need some more information to get the right parts. For the leaf springs, I need to know your axle capacity, as well as the…

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Answer 6

Hey Daniel, Chances are your slipper spring has flattened out over time and is longer than it originally was. Typically an older trailer that may not have had its suspension replaced anytime recently is around an inch longer than it was originally.…

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Answer 7

Hey Kevin thanks for your question. There is not much downside to going with the 5,000 lb springs instead of the 3,500 lb. A higher rated spring may make the ride a bit more "chunky" at times, since the spring would not flex as easily.…

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Answer 8

Hello Steve, thanks for reaching out. In my honest opinion, leaf springs are leaf springs. There is not going to be a noticeable difference in quality or longevity between the different brands. As long as the length of the spring is correct and the…

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Answer 9

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 10

Though I do tend to warn people about the ride getting stiffer when upping the capacity of their leaf springs, you are correct in that you will technically never be fully "unloaded". I do have to mention that this could still happen, but…

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Answer 11

Hey Rusty! Can you measure the flat length? Check out the help article below which explains how to measure. This is the best solution for worn out leaf springs. Realistically they're probably a little shorter than 24-7/8" which means we…

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Answer 12

Hi Todd, To go with trailer leaf springs that are slightly stiffer than the 4,400 lb rating of your axle you can go with 4,500 lb springs or 5,000 lb springs. The right one is going to depend on the length of your current springs though, as…

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What Kind of Steel are Trailer Leaf Springs Made of

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