How to Select Replacement Double-Eye Leaf Springs for Trailer

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Question:

The lenght from the bolt to bolt is aprox.26in on my trailer and the leaf spring that I took off is approx. 26.5in when I looked in Amazon and local stores, I can only find a 25in plus and a 27in plus. is there a 26in leaf spring or can i use a 25 in or a 27in? looking at the current springfree and no load I do not think that it is a 27in since the lenght to eye center to eye center is 26.5 in and i am pretty sure that it should not get short as it wears. but I also do not fill comfortable using 25 since the shackle will should slightly fold towards the front shackle.

asked by: Max S

1

Helpful Expert Reply:

When selecting a pair of new double-eye leaf springs for your trailer axle you want to match up both the axle weight rating and the springs' eye-to-eye dimension. Please note that you should ALWAYS always replace both springs on the axle at the same time to avoid alignment/tracking problems. Leaf springs DO get longer as they flatten out from wear, but they never get shorter.

First, determine the axle weight rating. This can be done by checking the sticker on the axle beam itself, by finding the axle weight rating on the trailer's main identification plate or within the specs section of the owner documentation. You can also contact the trailer manufacturer with the trailer's VIN.

Once you know the weight rating you then want to choose a set of springs with that capacity that are just shy of your eye-to-eye measurement of the old spring. Since leaf springs do stretch over time if you measure 26-1/2 inches you'll want a 26-inch spring like # e77SR for 2000-lb axles, # e27SR for 4,500-lb axles or # e94SR for 6000-lb axles.

All double-eye springs appear on the linked page. Just click your axle rating, then the appropriate spring length, and choose two springs whose combined capacity equals the weight rating of the axle.

You can also refer to the linked article concerning double eye suspensions which has a lot of helpful information.

expert reply by: Adam R

1

Answer 1

I can help you determine the right replacement double-eye leaf springs for your Keystone Hideout, though we don't have any way of knowing what specific ones you need. It's pretty easy though, as all you need to do is measure your current leaf…

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Answer 2

How did you measure the existing springs? Because leaf springs will flatten out over time as they wear, the best way to get an accurate measurement of the eye-to-eye length is with the trailer up on jack stands so the axle hangs free. This should…

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Answer 3

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 4

I do have the perfect replacement option for your 2003 Bass Boat. For a 26" long double eye leaf spring, I recommend using the 4-Leaf Double-Eye Spring for 2,000-lb Trailer part #e77SR as long as your current leaf springs are 1-3/4" wide,…

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Answer 5

There is no specific torque rating for shackle bolts. Basically for the middle bolt there should be enough free play in the shackles to allow them to move. Tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs…

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Answer 6

Trailer manufacturers don't usually keep a record of parts like these that they install at the factory, so I cannot be sure as to the exact length of the shackle strap that would have come originally on your trailer. With this in mind, a 3-1/8…

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Answer 7

I have a replacement option for you, but the only slipper spring we offer that is 1-3/4" wide and is 26-1/4" long is the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long #e33SR. Since you mentioned that…

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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

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 10

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 11

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 12

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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How to Select Replacement Double-Eye Leaf Springs for Trailer

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