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SumoSprings Solo Rear Helper Springs Review

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Review of the SumoSprings Solo Rear Helper Springs

Today, we're gonna give our truck a much needed upgrade. We're putting the SumoSprings Solo custom helper springs. This is going to replace your factory jounce stop. And it's gonna be a little bit bigger, so it's gonna activate a lot sooner. And these are gonna work independently from each other. One on one side, one on the other.

So, for some of those off-center loads, it's gonna be able to snap back to center pretty quickly and really, really improving the drive quality. This is also gonna help with body roll whenever you're turning, so this doesn't feel like you're gonna flip. And it's also just going to prolong the longevity of your other suspension components, so your spring isn't gonna be working as hard. And one thing I like about the suspension enhancement when it's just the jounce stop, it's not gonna be activated right now with nothing in the truck. We still have a little bit of a gap, so you're not going to make your ride quality worse without hauling stuff.

So, another thing that people come to all the time at etrailer is airbags. So, comparing them to the airbags, if you have airbags on, one, it's gonna be a lot longer of an install. There's a lot more maintenance involved. And also, you're gonna have a worse ride quality when you're not hauling. I think that airbags are mainly for the heavier loads, when you're doing it a lot.

There's a lot more involved with airbags but there's a lot more that you can do. So, you can truly level out your truck with the load on there if you have airbags. I think that's pretty cool. But with these, you don't really have any adjustments. If you put them in there and if the axle hits it, it's gonna help.

And if it doesn't, it's not. We're gonna show you how to install the aftermarket jounce bumpers but first, like any good experiment, we need a control. So, let's see exactly what our stock ride height's gonna be. We're gonna start in the back. We're gonna measure from the ground up to the wheel well right here, and that is 40 inches with nothing loaded with our factory suspension. And then going up front, I'm gonna do the same exact measurement. Down the ground up to the wheel well, let's say, it's about 37 inches. My buddy, Dave is loading up the water tank. This is what we like to use to simulate the amount of load that you're gonna have. We have a decent amount of water in it. It is about 1,000 pounds. So, watch that level of the bed when he drops that down. Oh, yeah. And this is really loading up this truck. We saw about three inches of sag happening with the stock jounce stops. So, about 37 inches in the back. But in the front, it's still at 37 inches. So, we're not really squatting like that, but just in the back. So, now what we're gonna do is we're gonna take it on our test course, just to see how the factory setup really works in a real-life situation. Well, that was fun. I felt, when we we're going on our test course, the suspension is definitely traveling but it's never really stopping. It was a lot of up and down and up and down. I didn't really feel the factory jounce stops doing anything. So, what we're gonna do now is we're gonna go in the shop, upgrade, and then do it all again. Before you do anything, chalk the front wheels 'cause once we jack up the back, it's gonna wanna roll. So, chalk up the front wheels. And then I like to jack up the back from the hitch but you wanna take some safety measures. So, I'm jacking it up from the hitch. And then I'm gonna have some jack stands here to bring all the way up to the top, just in case the jack fails. So, you always wanna have the proper safety measures in place. So, that's what we're gonna do. The idea here is that we're gonna get this suspension to completely sag. That's why I'm not jacking it up from the axle 'cause we need that axle to be as low as possible, but we do wanna get it to right where these tires are lifted off the ground, just so we know for sure that the suspension is at full travel. It's just gonna give us a lot more room to put the new stuff in. So, all you need to do with this is you just need to manhandle this thing out and it just pops out just like this. We are gonna have some options here. So, we're gonna be installing on the driver's side, so this is how it's gonna go. And we can either have it like this or like this. We want the holes to be closest to the tire. So, since we're on the driver's side, holes are closest to this side. And then the other options that we have, we can either take just the part here and line it up or we can put the spacer in there. The spacer is gonna give us less space in between the axle and the bottom here. So, if you want this to help sooner, definitely add the spacer. And we have two different bolts. The longer one is for the spacer. But we're not gonna be using that today, so we're gonna use the shorter bolt. And the whole goal with this is to get this part as closest to our wheel and as far back as possible. So, since the holes are a little offset, we're gonna have the holes to the left side, which is on the driver's side, and then as far back as possible. We'll take our bolt that comes with the kit and we're gonna tighten it down with a socket. And this is the 9/16-inch socket. You need to hold this down, just so it doesn't rotate. Notice that we have a space right here, that's how the brackets are supposed to go on. They're not gonna go on the other way, so just notice that. And again, we wanna make sure this is as over here as possible. So, we're gonna go up and drop that into place and we're gonna start putting our washers on. I think what I'm gonna do is just put one on to start, just like that. And just check to make sure it's gonna be hitting the proper part of your axle. If you followed our directions properly, it should line up pretty good. So, I'm gonna put this other bracket on and do the rest for the remaining bolts. 13-millimeter wrench. And if you really wanna make it easier on yourself, get one of these. It's gonna make it a lot quicker. And if it pivots, that's even better. So, you just go up here and just tighten them all down. You definitely wanna pull this to push the thing up, especially when we initially tighten them down. And I like to kinda go back and forth, back and forth to get all of them pretty much tight and snug and then go back through and then snug them up even more. All the while is we're trying to keep this bracket nice and straight, 'cause you can't really see a whole lot. And once we go over all of them and then triple-check to make sure they're super tight, then we're pretty much done. Lower it down nice and slow, nice and slow. And then we can take our chalks out and I'll see you on the test course. The same amount of weight, different components underneath for the suspension, and we are doing a lot better. It's about 38 1/2 inches, which before, it was 37. So, about an inch and a half improvement there. And I noticed that the upgrade that we put on there, it's already hitting the axle, so it's going to be a lot more stiff and that's good. That's what we're looking for. And in the front, 37, like before. I've done this setup on a lot of different trucks and it always improves the ride quality. So, now, instead of sagging down a lot, about three inches, we're halfway there. So, our stock springs aren't gonna be doing as much. And that's pretty much where it's gonna stop. 'Cause when we hit some of those bumps, it exceeded that three inches. But now, since the jounce stops are on the axle, that inch and a half is pretty much as much as it's going to travel. It's gonna protect the other suspension components and make them last a little longer. So, now we're gonna go on the test course. After ripping around the test course, it was definitely better than the factory stuff. I could feel my suspension really bouncing back to center, especially when I was taking those sharp turns. With the water, it kinda sloshes around and I didn't really feel a whole lot of that in the cab, and I definitely did with the stock suspension. And I would definitely say that it is smoother than some of the other upgraded suspension enhancement kits on our site. Like just those little rubber pucks that are black, those are good, but they don't have as much flex as the ones we have on now. A little bit of time now is going to give you a lot of time on the road where your ride's gonna be a lot smoother, definitely something I would grab for my truck. And that'll do it for our look at the SumoSprings Solo custom helper springs..

Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Robert C
Test Fit:
Robert C
Employee Adam E
Test Fit:
Adam E

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