30" Trailer Leaf Spring - Slipper Flat End - 2 Leaves - 4321-10
SKU: 43705883423

30" Trailer Leaf Spring - Slipper Flat End - 2 Leaves - 4321-10

Sale price$48.51 Regular price$53.90
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

30" Trailer Leaf Spring - Slipper Flat End - 2 Leaves - 4321-10Number of Leaves 2 Leaf Spring Width: 1 3 4" A Leaf Spring Length: 15" B Leaf Spring Length: 17 3 4" C Spring Arch: 4. 88" D Stack Height: . 72" E Eye to End Length: 30" Bushing Inside Diameter: 9 16" Leaf Spring Material: . 360 Leaf Spring Capacity: 1,000 lbs. Slipper End Type Flat End Alternate SKU: UNA 038, US 3005, US3005, UFB30002, WD 2, WD2, 432110, LF30002L, UNA038 Slipper Leaf Spring 4321 10 fits all types of trailers including utility, boat,

  • Number of Leaves - 2
  • Leaf Spring Width: 1-3/4"
  • A - Leaf Spring Length: 15"
  • B - Leaf Spring Length: 17-3/4"
  • C - Spring Arch: 4.88"
  • D - Stack Height: .72"
  • E - Eye to End Length: 30"
  • Bushing Inside Diameter: 9/16"
  • Leaf Spring Material: .360
  • Leaf Spring Capacity: 1,000 lbs.
  • Slipper End Type - Flat End
  • Alternate SKU: UNA-038, US-3005, US3005, UFB30002, WD-2, WD2, 432110, LF30002L, UNA038


Slipper Leaf Spring 4321-10 fits all types of trailers including utility, boat, travel, dump and horse trailers. Same as part number UNA-038 and W-2. This 4321-10 trailer slipper spring has a 9/16" ID nylon bushing installed on one end and a flat end slipper end on the other. Measure along the surface of the leaf spring for the most accurate measurement. Eye to end measurements can vary over time due to the slipper spring flattening out. Contact the experts at Spring Works if you have any questions.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 43705883423

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Leah
Phoenix, US
★★★★★ 5
Excellent product
Format: Hardcover
Gave this as a gift to my daughter's father for fathers day. He cried
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Reviewed in the United States on May 28, 2026
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Jake Hoskins
Los Angeles, US
★★★★★ 5
Sweetest book!
Format: Hardcover
I think this is the cutest little book and it makes a perfect gift for dads! Especially first time dads or dads that are having a first time daughter. Great for a gift for Father’s Day, gender reveal, or just to gift dad in general! It’s a sweet story to read and dad and daughter will both love it!
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Reviewed in the United States on April 17, 2026
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Grant C.
Massapequa, US
★★★★★ 5
Very cute
Format: Hardcover
Very cute book. The illustrations are well done. The story line is adorable. Great for young children. Good gift for a boy or a girl.
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Reviewed in the United States on March 6, 2026
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Adaugo
Draper, US
★★★★★ 5
So incredibly beautiful
Format: Hardcover
So sweet and such high quality paper and illustrations
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Reviewed in the United States on April 16, 2026
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D. Kitchens
West Palm Beach, US
★★★★★ 5
Must read
Format: Hardcover
This is such a sweet book. Loved the message in it.
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Reviewed in the United States on March 29, 2026

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