Trailer Leaf Springs at Trailer Parts Superstore
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Leaf Springs

"SERVING THE BOAT, RV & UTILITY TRAILER MARKET SINCE 1981"
Leaf Springs for Boat Trailers, Cargo Trailers, Campers, Utility Trailers & Semi Trailers

TRAILER LEAF SPRINGS
Double Eye Trailer Leaf Springs Double Eye Springs
1-3/4" Wide Leaf Springs constructed with H.D. spring steel
Measured Length = Center of Bushing to Center of Bushing in a straight line, no load on spring
 
Open Eye Slipper Trailer Leaf Springs Open Eye Slipper Springs
1-3/4" Wide Leaf Springs constructed with heavy duty spring steel (also called 'C-HOOK' spring)
Measured Length = Center of Bushing to Center of Bushing in a straight line, no load on spring
 
Hook End Slipper Trailer Leaf Springs Hook End Slipper Springs
1-3/4", 2", 2.5" Wide Leaf Springs constructed with H.D. spring steel
Measured Length = Center of Bushing to End of Spring in a straight line, no load on spring
 
Radius End Slipper Trailer Leaf Springs Radius End Slipper Springs
1-3/4" Wide Leaf Springs constructed with H.D. spring steel
Measured Length = Center of Bushing to End of Spring in a straight line, no load on spring
 
Flat End Slipper Trailer Leaf Springs Flat End Slipper Springs
1-3/4" Wide Leaf Springs constructed with H.D. spring steel
Measured Length = Center of Bushing to End of Spring in a straight line, no load on spring
 
H.D. Trailer Leaf Springs H.D. Slipper Style Springs
2", 2-1/2" & 3" Wide Leaf Springs constructed with heavy duty spring steel
Tractor Trailer Leaf Springs Semi-Trailer Springs
Super Heavy Duty Leaf Springs constructed with heavy duty spring steel
 
LEAF SPRING HARDWARE
Leaf Spring Hangers & Seats Trailer Spring Shackle Links Trailer Spring Shackle Bolts
Spring Hangers & Seats Spring Shackles Spring Shackle Bolts
     
Trailer Spring Equalizer Bars Trailer Axle Mounting Kits Leaf Spring Bushings
Equalizer Bars Axle Mounting Kits Leaf Spring Bushings

    

HOW TO MEASURE TRAILER LEAF SPRINGS
  • Match the existing spring according to its shape and type (double eye, slipper-open eye end, slipper-hook end, slipper-flat end, or slipper-radius end), Length and Width.
  • Count the number of leaves, each layer of spring metal is considered a leaf.
  • Measure the length of the spring when the spring is not under load (jack up trailer by the frame), this is the free length of the spring.
  • Measure from the center of the front bushing in a straight line to the center of the rear bushing for DOUBLE-EYE and OPEN-EYE leaf springs.
  • Measure from the center of front bushing in a straigh line to the end of spring for HOOK-END, FLAT-END and RADIUS END leaf springs.
  • The inside diameter of the bushing in the attaching eye of the spring needs to match the shackle bolts and spring hanger holes used to mount spring.
  • An inside diameter of 9/16" is the most common size, but some older trailers used 1/2" bushings/bolts.
  • Every leaf spring we sell is supplied with a 9/16" ID bushing in the closed eye
  • Also note that spring capacity is given per each spring-thus a 4,000 lb. rated axle should be matched with two 2,000 lb. or higher capacity springs.