Picking Out the Correct Leaf Spring and Spring Hanger Replacements for a Homemade 6x8 Flat Trailer

Question

Question:

I have a home built flat trailer with 22.75inch eye to eye leaf spring that is 2inch wide, and double eye with 1/2inch bolts. I believe its 1000-1750 lb leaf spring. The trailer is 6x8 steel single axle. The rear shackle swings so a 23inch eye to eye would probably work. If you can recommend a replacement leaf spring ill certainly purchase it, otherwise ill need to buy new hangars as well.

asked by: Kyle P

0

Expert Reply:

For a 1,750-lbs leaf spring the closest we carry to what you're needing is the 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles # e59SR.

This spring measures 23-1/8" unloaded, is 1-3/4" wide, and has 3/8" thick leaves. Also, to pick out the correct replacement spring hanger # E4139 you're just going to need to measure the inside width and length from top to center of mounting hole on your current hangers.

Most of the time, double-eye leaf spring hangers will measure 1-3/4" wide so this isn't as important as the distance from the top of the hanger to the center of the mounting hole.

expert reply by: Bryce D

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Replacement Leaf Spring Needed
(click to enlarge)

Answer 1

The best way to measure your springs is to remove one from the suspension so it is no longer under tension. This way you can accurately measure its eye-to-eye length. If your hangers are 25-1/4-inches apart chances are that your spring would be…

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Answer 2

The closest spring I have to that is the 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles part #e59SR this is 23 1/8" eye to eye and is built for use on a 3500lb. axle so even though it is not a 4 pack it may have the capacity you need.…

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Answer 3

We have confirmed with SumoSprings that the #TSS-107-40 can be cut down to shorten them, but the brackets will fit a U-Bolt plate that is at least 3-7/8" wide. This will typically be larger than what is used on an axle that is less than 3,000…

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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

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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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

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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Answer 9

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 10

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

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Answer 11

The absolute best cushioned equalizer that fits the dimensions you mentioned having would be the MORryde ALLTREK 4000 part #MR89DR as this is only option to provide vertical and horizontal cushioning. This would make a big difference and you'd be…

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Answer 12

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Picking Out the Correct Leaf Spring and Spring Hanger Replacements for a Homemade 6x8 Flat Trailer

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