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Number of leaves: 4
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Spring Length: 26" eye to eye
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Spring type: Double Eye
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Spring width: 1 3/4"
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Eye diameter: 9/16"
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Spring capacity: 1000lbs.
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Spring Free Arch: 4.12"
Free Length = Center of eye to center of eye
Free Arch Length = Top of leaf to center of mounting point line
Trailer Leaf springs generally do not require maintenace or service other than rinsing off when used in salt water. It is acceptable to apply lubricant to moving parts. Leaf Springs are the most important part of a trailers suspension system. Double eye leaf springs attache at the eyes by spring hangers, or in the case of tandem or triple axle suspensions, into spring hangers located in the front and rear and equalizer(s) in the center. When determining the type of spring hangers or hanger kit you need, you must know the type of leaf spring you have and the trailer axles diameter and capacity. Trailer Leaf Springs can be configured to work with single, tandem or triple-axle suspensions.
An inside diameter of 9/16" is the most common size for trailer leaf springs. Some older running trailers used 1/2" bushings and bolts.
NOTE: spring capacity is given per each spring. 3500lb. rated axles should be matched with two 1750lb. or higher capacity springs.
Leaf Spring Interchange and Cross Reference
This spring will work as a direct replacement for the following:
UCF# UNA-124
S&G# LD26004F
Dayton Parts# US-1015
TRP# AS-4, DE-261000
Double eye leaf spring numbers: UNA-124 LD26004F US-1015 AS-4 DE-261000