Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,500-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-178275 | 11" | 22-3/4" | 24-5/8" | 12" | 14-1/2" | 4" |
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 flat 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: 4.9 out of 5 stars (142 Customer Reviews)
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.Replaced rusty springs on a 14' skiff trailer. Fit perfect, DIY for cheap in the driveway, it would've been easier with an impact wrench. Take their advice, etrailer is the best for a reason, get ALL NEW HARDWARE TOO!! I broke several fasteners removing them, if the springs are bad, so is the hardware. I have done three hitches and a set of leaf springs now with these folks. Their install videos and expert advice made it a breeze to save probably a couple thousand in labor at a shop. 458343
Product seems real strong delivered early I will be ordering from here again would recommend 808897
Replaced these on my old boat trailer along with hangers, shackles, fender brackets and fenders. Good product. 803712
Completely updated the axle, suspension, and added roller bunks to my waverunner trailer. Have taken the waverunner in for the winter and back out for the summer one time. All components were great and the trailer rides really well! 794371
Everything received quickly and accurat ely.. 785366
They fit, thanks 779399
Nice quality,easy install. 772587
Customer service exceptional. Items ordered came on time and some of the best tracking I have followed. I give them a galaxy of stars. 771314
Fast shipping just what I needed 768187
Exactly as describe with fast shipping 736901
The springs have worked excellent for me! Strong and easy to install. The trailer rides much smoother with them. They were shipped extremely quickly! 724662
I have to service was impeccable. They shipped springs to me quicker than anticipated even though I had one spring off trailer. As soon as UPS dropped of package I went at installing them. I had no problems and fit perfect. 713773
The springs fit perfectly and are working great. Great price that made my project more affordable to build correctly. 707154
Worked perfect, back up and rolling. 703824
While I haven't tried it yet (naturally I require additional parts, not etrailers fault, I broke a couple of bolts.) The springs arrived faster than promised and fit perfectly. 690886
Great product, fast delivery, easy web site to navigate, 690821
Great. 683371
Everything came as expected, well packed, no issues 657118
Ordered and received two leaf springs for a small trailer. The delivery was fast and the fit was perfect. Great store. 639618
Vincent S - 05/09/2020Easy installation. Rides smooth 639381
Great springs. The product description helped me select the exact size I needed for my application, and install was easy. 634517
Replaced the broken leaf springs on my old boat trailer. etrailer has the items in stock and the quality is always good. I have dealt with etrailer several times over the years and have always been completely satisfied. 633463
The original leaf springs on my Triton LT Trailer (for single SeaDoo) had rusted in two. These replacement springs fit perfectly on my trailer and where reasonably easy to install. 628730
Order was exactly as described, shipped promptly and of good quality. 619504
best price for a hard to find spring 611978
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