7-Leaf Slipper Spring w/ Hook End for 8,000-lb Trailer Axles - 26-5/8" Long

etrailer Trailer Leaf Springs - e37SR

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for an 8,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.

Features:

• Leaf spring acts as part of your trailer's suspension system
  • Provides attachment point for your trailer's axle
• Multiple leaves allow flexibility to absorb road shock
  • Allows for a smooth ride
  • Reduces wear and tear on trailer
  • Ensures level ride on bumpy and uneven surfaces
• Sturdy steel construction
• Nylon bushing included
• Pre-mounted hangers or aftermarket hanger kit (sold separately) required for installation
  • Eye of spring attaches to hanger mounted on trailer frame
  • Slipper end slides into hanger or equalizer

Specs:

• Quantity: 1 leaf spring
• Spring capacity: 4,000 lbs
• Axle capacity: 8,000 lbs
• Length from center of spring eye to end of spring (unloaded): 26-5/8"
• Spring width: 2"
• Eye diameter with bushing: 9/16"
  • Eye diameter without bushing: 1-5/16"
• Leaf thickness: 3/8"
• Number of leaves: 7
• Additional dimensions: see table

Note: To ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.

Leaf springs are an integral part of your trailer suspension system. The leaf springs provide the attachment points for your trailer's axle, suspending it from the frame of your trailer. Each spring flexes to absorb road shock as you travel, allowing the axle to move somewhat independently of the rest of your trailer. This helps to reduce wear and tear on the trailer and also ensures a smooth ride.

Slipper leaf springs attach to hangers that are welded onto your trailer. The eye of this spring will attach to the front hanger with a suspension bolt. The hooked slipper end of the spring will slide into the rear hanger. If you have a tandem- or triple-axle trailer, the slipper end will slide into the equalizer that connects multiple springs. The shape of the slipper end of a leaf spring may vary slightly due to differences among trailer manufacturers. Because of this, it's important to check your leaf spring's slipper end before purchasing a replacement spring.

To mount this spring, you will need hangers, a suspension bolt, and possibly a spring keeper bolt, depending on the design of the rear hanger. If you are simply replacing a spring, you may still have hangers welded onto your trailer, but it would be wise to replace the bolts as they can experience wear. It is also recommended that you replace the other leaf spring in your setup at the same time. Because springs can sag and elongate as they wear, this new spring may not exactly match the old one, and the alignment of your trailer could be affected.

If you are fabricating a trailer, you will need to purchase a hanger kit for installation. To determine the type of hanger kit that you need, you must know the specific type of leaf spring that you have, as well as your axle capacity. Depending on the hanger kits used with them, springs can be configured to work for single-, tandem- or triple-axle applications. Hangers and other suspension components can also be purchased separately if there isn't a complete kit that works for your setup.

e37SR etrailer Slipper Trailer Leaf Spring - 7 Leaf - 4,000-lb Capacity

Compares to SP-285275