Rough highways and uneven ground can pound your trailer, but this 7-leaf slipper spring keeps things steady. Its stacked steel leaves flex to absorb shock and keep the trailer level over bumps. Rated for 8,000-lb axles with a 4,000-lb spring capacity, it helps reduce bounce, sway, and the wear that long hauls can cause on suspension components. The spring’s 26-5/8" unloaded length and 2" width deliver solid support for heavy loads while maintaining a smooth towing feel.
Heavy loads and long miles demand a spring that won’t sag or crack. This slipper spring is built from sturdy steel to handle tough conditions without losing shape. The pre-installed nylon bushing in the 9/16" eye helps the spring pivot smoothly on the hanger bolt, cutting down friction and noise. Together, they create a system that’s tough enough for high-capacity use and still moves quietly and cleanly.
The hooked slipper end slides cleanly into the rear hanger or equalizer for a secure connection that keeps everything aligned. The front eye mounts to a welded hanger on the frame, creating a strong, simple suspension link that’s easy to maintain. With precise measurements—like 11-1/2" from the center of the eye to the spring seat and 26-5/8" total length—the geometry stays true so the axle tracks straight mile after mile.
Whether you’re setting up a tandem or triple-axle system, this spring gives you the flexibility to match your build. It pairs with 2" slipper spring hanger kits using 12" equalizers for smooth articulation between axles. That means you can confidently carry heavy loads while keeping consistent ground contact and even tire wear across the setup.
| Part Number | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| e37SR | 11-1/2" | 24-5/8" | 26-5/8" | 12" | 16-1/16" | 4" |
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Perfect just the part we needed and arrived as expected will be ordering again.
Always great doing business
I just want to say thank you. Everywhere I went no one had this spring or there suppliers where out of stock ordered it Monday and it was delivered the same week on Wednesday. Thank you.
Great looking spring packs. I’m confident they will function as great as they look.
It holds a lot of weight, I can tell you that much.!!
Great product, great price, super fast shipping
Slipper slapper I slipped it on. Love the upgraded leafs.
Super fast shipping definitely recommend etrailer for all your trailer needs.
Super fast shipping,Ordered on Friday, spring arrived Monday! fit like factory, out of the shop and back in service in a couple hrs.
Very good customer service, quick and easy parts ordering and on time delivery, very happy with etrailer.com, will keep ordering my trailer parts from them Thank You
Thought it was a good product for the price. UPS drop the ball. It was processing in their facility 30 miles away for four days before they delivered. It would not recommend them shipping through UPS go with FedEx.!
Website guided me through identifying what parts I needed for my trailer. The buying process was simple and easy to understand. Parts arrived very fast and fit perfectly. The only negative was shipping damage.
Kimberly and in fact every one of the staff I have ever talked to have all been extremely
helpful and great at their job. I can tell they all enjoy helping us out here fix our trailers and get them back on the road quickly and safely. Now I have to get back to work to get my leaf springs back on !
These are for my 24 ft cattle stock trailer. Its in the process of an overhaul, but the axles needed surgery right away so more to come!
Don't have them on yet
Definitely an upgrade from the stock 7k springs. They seem a little stronger than their rating. I put these heavier springs on all my trailers now.
Rite spring and rite price and fast shipping with tracking ,will order more soon
Great factory replacement we will see how it’s lasts over time
fit perfectly, and sales team was excel lent
Everything as promised
Working on a tri-axle still have one more spring to order and equalizers
The mfg had installed the mounts 1" to far apart and the front would slip out of the mount, and would get jammed the. break. We corrected the mounts in house, put 8000# axel in and these springs fit perfectly.
6th spring ,all good ,about ready to order my third axle so I can complete my tri axle trailer,, I'll let you know we completed, very fast shipping well packed with the right parts
Just what I ordered. Quick shipping too!
We order 6 only get 5 now customer can not go racing this weekend. This seems to be a ongoing theme with etrailer.
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