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Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 5,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.
Features:
Specs:
| Part Number | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| SP-231275 | 11-1/4" | 24-5/8" | 26-5/8" | 12" | 16-1/16" | 3-1/16" |
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.
Average Customer Rating: 4.7 out of 5 stars (21 Customer Reviews)
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 5,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.
This was a perfect fit for one of our mini excavator trailers.
The leaf springs worked great and helped restore a trailer in need. Thank you for you quick service, products for a fair price and letting in touch with me quickly when the order needed to be changed.
Very quick service. And the videos were very helpful to pick the correct spring.
Arrived in timely manner. Product is as described. Well made. Very happy so far
6 spring showed up loose in a cardboard tray. No cover, no tape, no label. UPS driver didn't even know if everything was there. It was by some luck.
Correct fit and correct photo of item. Fast shipping. I will use etrailer.com again.
Thanks
One spring was a UNA-232 a 5 spring slipper the other one was a UNA-231 a 4 spring slipper
Perfect fit, exact, like a glove and great price, fast ship.
Well built product. Always fast shipping from etrailer!
Good quality springs. This product is quality not usually found in a product at this price.
Very good quality arrived quickly. will definitely order from again.
Awesome deal super fast shipper
Was very impressed with speed of delivery. Thank you. Kinda not happy with China stamped on my order. We really need to buy American made.
Every thing looks great, haven't been able to put on yet. I just hope i ordered the right ones. Thanks for the fast delivery.
Product looks good will install soon
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