etrailer | 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles Spec Review

Click for more info and reviews of this etrailer Trailer Leaf Springs:
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Click for more info and reviews of this etrailer Trailer Leaf Springs:
Check out some similar Trailer Leaf Springs options:

Click for more info and reviews of this etrailer Trailer Leaf Springs:
Check out some similar Trailer Leaf Springs options:

Click for more info and reviews of this etrailer Trailer Leaf Springs:
Check out some similar Trailer Leaf Springs options:

Click for more info and reviews of this etrailer Trailer Leaf Springs:
Check out some similar Trailer Leaf Springs options:

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Hey guys, Kevin here at E-trailer and today we're gonna be taking a look at and showing you how to install E-trailer's line of double eye leaf springs. Leaf springs are one of the most essential components of the suspension for your trailer. Not only do they provide a place for your axles to actually attach to your trailer, but they also help get rid of all that road shock and support your trailer so that you're not just hitting every single thing as you go down the road. Like an old wooden wagon would back in the day when they first invented the wheel. These leaf springs are all gonna come with nylon bushings in them so that it helps them glide a little bit better. Typically, you'll either have a nylon or a bronze bushing.

If you plan on using wet bolts I recommend swapping off that bushing for a bronze one because grease that you would use with a wet bolt will eat up those bushings. One of the biggest questions we get here all the time is Hey, can I just swap out my leaf springs based on the amount of leaves that are in it that isn't really a great indication of what the actual capacity of that leaf spring is because the thickness of that leaf is going to change depending on the amount of leaves that are in it. And you could have two different completely different weight capacities with the same amount of leaves in it. So that really isn't a good indicator of what you're gonna need. What you're gonna do instead is measure from the center of the eyelet on both ends of your leaf spring.

You wanna get that measurement, and then you want to know what the capacity of your axle is. and that's what's gonna help you determine exactly the right fit for your leaf springs. If you need help determining the correct replacement components of your suspension; maybe your leaf springs, your equalizer shackle straps or bolts, or maybe those U-bolts, go ahead and reach out to us via our Ask The Experts link, and you might just get your question answered by me or one of my other fellow coworkers. As far as installation goes this is going to be a very, very messy job. As you can see, we have tons of rust and dirt and all kinds of debris all over the floor.

Definitely recommend wearing some gloves. Wear some clothes you don't care about, wear eye protection especially when you're under your trailer, typically even if it's a brand new trailer there's some kind of coating or something that's gonna fall down and get in your eyes and it can just ruin your day. Other than that, it does take a little bit of patience. Hammering in your bolts can be quite a bit of a process. There is a lot of going back and forth from under the trailer and out so definitely make sure that you properly secure the trailer with some floor jacks that are correctly rated for the weight of your trailer.

So with our wheels off you can take a good look at our suspension here. As you can see, there's already been some work done on our suspension which honestly isn't really up to standards here. If you look a little bit closely you can see our shackle bolts are actually two different sizes here and that's not really safe. That's not okay. There's a whole bunch of play in here. I'm sure our bushings are probably completely gone at this point with how much this trailer sits outside and gets pretty roughly used. Same thing with our equalizer. It's pretty worn out as well. When your suspension sta

[grahamfron]

Well done, and thanks for the tips Kevin

[brucenichols]

Thank you for pointing out that the 'Spring Wraps' or 'Retainers' go toward the Front on BOTH Axles!

[CharlieOBriant]

One tip.. hammer the bolts in the equalizer straps before you insert them into the spring/equalizer. Makes it much easier.

[jamescampolo]

How about hammering the bolts into the shackle before putting them on the trailer. That would be easier. Just lay the shackle on something with a deep hole in it and drive the bolts into it then put the shackle into the equalizer and spring and tighten the nuts.

[alexschmidt]

great video. is is ok if the equalizing stays like it is at the end of the video with one side almost touching the frame with the boat on the trailer?

[billybobbarker]

Question. The trailer started out with the spring ends at the equalizer being below the equalizer arm. And when fin shed the spring ends are above the equalizer. Which is correct and why different ?

[webcompanion]

Why do the spring retention clips need to go towards the front of the trailer when installing them?

[jeb]

Hello, I took the tires off in my rear axle of my trailer and now the equalizer is totally cocked and One Direction and my hubs are so low of the ground. I can’t put the tires back on how do I rebalance that equalizer so that my rear axle hubs are off the ground enough so I can put the new tires on.

[yeti]

I know this is a dumb question because in the video you have the trailer off the ground but does it matter if the trailer off the ground or on the ground when you measure the distance?

[NickBealed]

Which side is considered the “left side” of the trailer ? Driver side?