Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,900-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 |
---|---|---|---|---|---|
SP-039275 | 13-5/16" | 30" | 15" | 17-3/4" | 4-7/8" |
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 (124 Customer Reviews)
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,900-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.Service was excellent. Ordered leaf springs on Monday and they were delivered two days later. My shipping was upgraded at no additional cost to me. I haven't installed the springs yet but they look great and they should fill my needs. I will order from you for any future needs. 424942
Great Experience! When I noticed that the leaf springs on my 44 year old boat trailer had cracked I thought I would never find replacements. I fully expected to have to have something custom built. I was amazed when I found the fantastic diagrams/descriptions dimensions for replacement springs on etrailer.com The phone support person was wonderfully helpful in confirming if items were in stock and ready to ship. The replacement springs arrived on time and everything bolted up perfectly! Thanks for such a great site! 84053
The leaf springs were an easy fix even on a very cold wintery Saturday afternoon. The fit was perfect and shipping was quick. 937503
++++= 932103
Super service getting all the right parts. I received the parts in just two days it took about one hour to change both springs .everything fit grate back on the road.thanks 927790
Everything is here and everything looks good thanks etrailer 924325
Purchased these as a direct replacement to a much older set. Huge difference in strength and quality from what I previously had on the trailer. Matching the size using the product chart was very helpful. 919052
Great price, great product, perfect fit 918427
Awesome service. I will use you again if I need to. 917010
Not much to say. It's what I ordered and it came quickly. Looks like a quality part. 915634
910922
Came in on time fits perfectly on my boat trailer 908330
It was exactly what I needed service was quick and easy 902379
Simple online ordering with timely deli very. 900047
THese spring are getting rust already. The old ones lasted 20 years. The new ones are not the same. 857708
Perfect fit, nice heavy gauge steel that's easy weld. 837881
Spring was good, fit as expected. I wish the paint finish was a little more durable but we're talking about a trailer leaf spring here, that's just the way they are. I had to flip the center pin for my application which was easy enough. The most disappointing thing is the way these were packed, like everything else I have ever ordered from etrailer they were literally just thrown in a giant box with a single sheet of packing paper. The box was of course destroyed by the heavy springs bouncing around in the box. You can tell that at some point at least one spring fell out of the box and the shipping company had to put it back in. 807361
Great replacement for my busted spring. The shipping was very fast and communication was excellent. I highly recommend. Thanks, Aaron 797079
Axle and all parts still holding up! 794814
Thank you so much looks like it'll work just fine have not had the opportunity to bolt it on yet came in today and also the leaf spring looks like it'll fit exactly where the one I broke is LOL thank you so much for your rapid response in filling my order and free shipping did not hurt my feelings at all thank you have a nice day note to Rose thank you also 771319
Great experience. After my order was placed, I was notified it would be arriving sooner than expected. It did just that. Good looking leaf springs, even though I haven't installed them yet, they look pretty good. They weren't damaged in any way and they measured exactly what was specified. Highly recommended website for trailer parts 765345
Un flippin believable. The service was tops...it might have been the best service department I have ever dealt with. Super fast shipping and quality parts. There is no other place to go for your trailer parts. 759106
good parts, good price 747488
These springs were perfect for replacing the old worn out springs. It was a very easy swap to do. The trailer now tows very well. 746761
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