In my perception, this doesn't make the energy within the axle and suspension go away. Rather, it just gives some of that energy another path to travel up into the trailer. The furious bouncing of the axle is lessened because some of that fury is now being transferred up into the rest of the trailer. I want to isolate the trailer *more* from the violence of the axle and suspension rather than increase it by providing more transmission paths for energy up into the trailer. Sumo Springs are essentially just softer bump stops and don't act like shocks because they're not attached at both ends and don't resist extending forces like a shock does. Sumo Springs only resist compression forces and will release that stored compression force as fast as they're permitted. Just my thoughts as I analyze the setup. Happy to hear other observations.
Yes the axle moving is what's keeping the energy from being transferred to the trailer. Think, if you welded the axle solid to the frame the axle wouldn't move at all in this type of video, but the ride in the trailer would be horrible and much harder on the tires / wheels / hubs etc because there's nothing to absorb the energy. A great example of this is the MythBusters episode regarding driving faster over bumps. They initially thought that because the suspension was moving more that that meant for a rougher ride then they realized the suspension moving more means it's working
Thanks for sharing! But with the complete different camera positioning I couldn’t tell the difference in any dampening of the axle vertical movement??? Would have been nice to see side by side vids playing at the same time along the exact same points along the road. Or better yet with some axle mount accelerometers. From the videos it seems like the did not make much difference to me....
I can’t wait to try these on my horse trailer, along with a smoother ride for myself, I’m sure my horses will feel less road vibration in their joints? Thanks for all you do Mr. Truck.
Thank you for sharing the video Sir! Much appreciated. I might have a question or two when it comes to these Sumo Springs. These look like the most straight forward and no drilling kit I’ve come across so far and I want to install them on my 2019 Coachmen Apex Nano, which has a dual axle. I’m not 100% sure whether I need to go with the 3000-5000 GAWR, or the 5000-8000 GAWR spring over axle configuration. Any guidance or advice would be greatly appreciated!
Mr Truck, I posted this comment on your Facebook page also. Do you know how the Sumo springs will compare to Timbren springs? I had Timbrens on an older truck, and they worked great as far as leveling the truck with a load, but the ride was stiff and bumpy, but they kept weight off the axel. What I have seen from your video, the Sumos may be better on a trailer. I have airbags on my truck, so I do not think I should add the Sumos or Timbrens. Thank you for your advise and videos.
Thank you. Sumo's are softer than Timbrens. I like the smoother ride of Sumo's. But Timbren only has I think 3 part numbers, less complicated. Sumo probably has 10 applications for each truck
You bet, well Sumo's work more of like a shock absorber only letting the trailer sag less, controlling the leaf springs rebound. Equalizer upgrade does take some of the shock out of the leaf suspension
Good day, I have a small enclosed trailer ( 4x6) just for camping, axle rated for 3000 lbs, do you recommend this product? 2- what will be the correct weight to maintain the balance between axle weight and “confort”) to avoid the bounce? Thank you.regards from Mexico, great videos
Our solution was to buy a trailer with torsion axles, where the rubber springs are inside the axles... POI...why would anyone buy a trailer that doesn't have shocks? Even our Dexter Torsion axle has them.👍
Yes, we discussed that in the comments. I was using a Go Pro 7 and could barely see the picture. And it was difficult to use with a phone. Not a mistake I do often
Thinking of putting these on my Ram3500. I have airbags now and I hate playing the pressure game. My camper is 4,000 pounds dry. Do you think these would be a great alternative?
If you are breaking leaf springs sounds like you need larger axles with the matching larger springs, or possibly a heavier duty trailer. Yes these will help keep you from breaking your leaf springs but that means that force is transferring away from your leaf springs but instead into the trailer frame and axles Wheels tires
@@mattjhuhn Naturally, if you take care of the weight distribution on the trailer, and don't address the truck (front and rear ideally) you're going to feel some of that chucking. The weight has to go somewhere! We suggest going to our website and using our year/make/model to find your truck for a full solution. We'd also love to chat you or talk on the phone to suggest the best solution for your setup. Cheers! -T.
I took off the Sumo Springs and went with Roadmaster. The big difference was Road Master is always connected to the trucks leaf springs. Sumo Springs and Timbren on contact the springs when you are loaded. Roadmaster controls squat and improves the trucks empty ride. Here's my video th-cam.com/video/-eyXMEQlxe8/w-d-xo.html
@@MrTruckTV that's the truck suspension. This video is on the camper suspension with the sumo springs. Did the sumo springs help with handling and sway from the trailer?
@@nickradeke Oh thanks, yes, they worked like shock absorbers and kept the trailer from bottoming out. This trailer had large fresh water tank between the axles and getting too close to the axles. SumoSprings kept the tanks away from the axles.
@@MrTruckTV thank you for the quick reply. My water tanks are in-between my axels and I don't think I will have room for shocks. This might be a good alternative. I actually have sumo springs for my f150 and have not regretted them.
@@nickradeke That's great, I wish there was an easy way to add shocks to trailers, usually not enough room. That's why I tired the trailer sumo springs and sell them. They are the best solution I could find.
Thanks, I have one week to go. Today my daughter and wifes siste are getting their crap out of my barn. Tomorrow Andre is helping tomorrow load a trailer, Monday my youngest son and I move 3 project cars and then I will me two more loads after Christmas. If we cut it short, I'll email you.
Hate to be critical, but in your intro, you are talking about the sumo springs, and waving the one in your hand in such a way that it is out of the camera view half the time. Set your product down on a table and carefully move it around so it can be seen from all angles. "Sumo Trailer Springs gave me more wheel travel and kept the axle from hitting the water tank brackets." I will agree with the second part of your statement, but the first, no, you didn't gain even a frogs hair of suspension travel, in fact, it restricted the travel enough to keep the axle from hitting the tank brace. At 4:15 and again at 5:33 you refer to the fixed eye end of the spring as the "shackle" which it is NOT, the shackle, and the equalizer end, are one and the same. At 3:28 you refer to the tank as a "hundred and ten gallon fresh water tank" and at 5:12 you refer to the tank as a "hundred and ten gallon fuel tank". OOPS. It would help to script your videos and then review the finished product for errors and at least add text corrections on the screen at the point of the error. Practically all TH-camrs do this. Different before and after camera angles make any determination of which is better impossible on the video. What scares me is the amount of flex in the spring attachment bracket in the before shots. Brackets flex and the frame is probably twisting also. Sumo probably stops this, but impossible to tell with the different camera mounting locations before and after.
Yes, you're right. I got in a hurry. I shot before and after on different days and thought I had the camera in the same place I think I had more zoom on the after video. I'm in the middle of moving my office farther in the country and have been rushed all month.
![[Full] 4 ต่อ 4 Celebrity EP.910 | 22 ก.ย. 67 | one31](http://i.ytimg.com/vi/4TR3MVpOiw8/mqdefault.jpg)
In my perception, this doesn't make the energy within the axle and suspension go away. Rather, it just gives some of that energy another path to travel up into the trailer. The furious bouncing of the axle is lessened because some of that fury is now being transferred up into the rest of the trailer.
I want to isolate the trailer *more* from the violence of the axle and suspension rather than increase it by providing more transmission paths for energy up into the trailer. Sumo Springs are essentially just softer bump stops and don't act like shocks because they're not attached at both ends and don't resist extending forces like a shock does. Sumo Springs only resist compression forces and will release that stored compression force as fast as they're permitted.
Just my thoughts as I analyze the setup. Happy to hear other observations.
They work on a trailer, it's hard to had shock absorbers to to a trailer. Not enough room. I think Sumo for trailers to help smooth out the ride
Yes the axle moving is what's keeping the energy from being transferred to the trailer. Think, if you welded the axle solid to the frame the axle wouldn't move at all in this type of video, but the ride in the trailer would be horrible and much harder on the tires / wheels / hubs etc because there's nothing to absorb the energy. A great example of this is the MythBusters episode regarding driving faster over bumps. They initially thought that because the suspension was moving more that that meant for a rougher ride then they realized the suspension moving more means it's working
@@blakel4595 Right, and having another connection between the axle and the trailer (i.e. the Sumo Spring) transfers more energy into the trailer.
Have you seen our video if testing them at the Navistar Proving Grounds? th-cam.com/video/fySzbskmcag/w-d-xo.html
- Tom
I thought the same thing, however, after installing them, it made ALL the difference.
Thanks for sharing! But with the complete different camera positioning I couldn’t tell the difference in any dampening of the axle vertical movement??? Would have been nice to see side by side vids playing at the same time along the exact same points along the road. Or better yet with some axle mount accelerometers. From the videos it seems like the did not make much difference to me....
I just bought a new travel trailer and I want to install these! Thank you for the GREAT video.
Glad it was helpful!
Looks like those sumo suspension springs are doing the job. Thanks for sharing Kent enjoy the video.
You're welcome
Seems like a great idea judging by the slamming around of the axle on a normal road.
I can’t wait to try these on my horse trailer, along with a smoother ride for myself, I’m sure my horses will feel less road vibration in their joints? Thanks for all you do Mr. Truck.
You're welcome. We sell them on MrTruck.com. Thanks, Kent
Great video!!! Much thanks for sharing. This will be a great upgrade for our TT.
You and your family have a Merry Christmas!!
Thanks
Thank you for sharing the video Sir! Much appreciated. I might have a question or two when it comes to these Sumo Springs. These look like the most straight forward and no drilling kit I’ve come across so far and I want to install them on my 2019 Coachmen Apex Nano, which has a dual axle. I’m not 100% sure whether I need to go with the 3000-5000 GAWR, or the 5000-8000 GAWR spring over axle configuration. Any guidance or advice would be greatly appreciated!
I think you mean spring hanger that is welded to the frame. The shackles are only attached to the equalizer and spring.
Looks like you may wanna Reinforce the Spring shackles. You can see them flexing in the video
My Welds broke on my working play brackets as well. I ended up drilling them out and through bolting them with lock washers.
I see why mine break where they do, so much flex.
Mr Truck, I posted this comment on your Facebook page also. Do you know how the Sumo springs will compare to Timbren springs? I had Timbrens on an older truck, and they worked great as far as leveling the truck with a load, but the ride was stiff and bumpy, but they kept weight off the axel. What I have seen from your video, the Sumos may be better on a trailer. I have airbags on my truck, so I do not think I should add the Sumos or Timbrens. Thank you for your advise and videos.
Thank you. Sumo's are softer than Timbrens. I like the smoother ride of Sumo's. But Timbren only has I think 3 part numbers, less complicated. Sumo probably has 10 applications for each truck
I put a set on my truck it was very helpful tundra and I also put a set on my cargo trailer single axle 1700 lb cargo trailer it's got to help
Great
Maybe my old eyes. But I did not notice any difference in the videos. Maybe a synchronized side by side video would help.
We had trouble getting the camera at the same zoom for each run
im sold.
Thank for your video, do you recommend the summo springs over an equalizer upgrade? I wanted to do one or the other. Your thoughts would help.
You bet, well Sumo's work more of like a shock absorber only letting the trailer sag less, controlling the leaf springs rebound. Equalizer upgrade does take some of the shock out of the leaf suspension
The camera should have had the same angle for both shots. The first angle was better. By changing it there is no way to tell the difference.
You just have to look a bit harder to see the difference. It took out the smaller vibrations and controlled the larger ones little bit
In the first camera angle one could watch the liquid in the tank, it was a good gauge,the second one the tank wasn't visible.
@@dougsmith9028 Yes I think I had the camera in the same place, but the zoom was different on the first one
Good day, I have a small enclosed trailer ( 4x6) just for camping, axle rated for 3000 lbs, do you recommend this product?
2- what will be the correct weight to maintain the balance between axle weight and “confort”) to avoid the bounce?
Thank you.regards from Mexico, great videos
Does you truck squat with a 3000 lb trailer?
If bouncing is the main concern, you had add spacers to the Sumo Springs to control bounce
@@MrTruckTV nop, 0 squat, my truck is a Mitsubishi 4x4 diésel diesel 4 cil( year 17) rated for 1 ton and 2.3 ton to tow..thanks for your advice
Our solution was to buy a trailer with torsion axles, where the rubber springs are inside the axles...
POI...why would anyone buy a trailer that doesn't have shocks? Even our Dexter Torsion axle has them.👍
Most trailers don't have shocks
Hey nice video. Could you also add shocks to this also or would it be over kill for a small trailer to help with bounce? Thanks for your time.
Thanks, shocks my help, I just don't know where to mount them
With the change in camera position as the previous reply indicated, it is difficult to do an “apples to apples” comparison.
Yes, we discussed that in the comments. I was using a Go Pro 7 and could barely see the picture. And it was difficult to use with a phone. Not a mistake I do often
Thinking of putting these on my Ram3500. I have airbags now and I hate playing the pressure game. My camper is 4,000 pounds dry. Do you think these would be a great alternative?
I like them for lighter loads. For 4000 lb camper I would prefer Roadmaster springs or SuperSprings
I think I need these on my flatbed. I haul a 4 series tractor and I've broken all leafsprings over the last year. Hoping it will help 👍
Well here is more info, but the leaf springs can only be 1 3/4 inches wide mrtrailer.com/springs.htm
If you are breaking leaf springs sounds like you need larger axles with the matching larger springs, or possibly a heavier duty trailer. Yes these will help keep you from breaking your leaf springs but that means that force is transferring away from your leaf springs but instead into the trailer frame and axles Wheels tires
U bolts appear only good for 4 leaf springs. Will they fit over a 6 leaf?
good question, I'll have to as Super Springs. I know they are coming out with a heavy duty model
Can you feel a difference transferred to the truck? Chucking or harshness over the bumps?
Really want to know this too... I'm on the verge of ordering an add on shock kit, but this would be so much easier.
@@mattjhuhn Naturally, if you take care of the weight distribution on the trailer, and don't address the truck (front and rear ideally) you're going to feel some of that chucking. The weight has to go somewhere! We suggest going to our website and using our year/make/model to find your truck for a full solution. We'd also love to chat you or talk on the phone to suggest the best solution for your setup. Cheers! -T.
Thanks for the review Mr Truck!
Thanks
How does the trailer do with crosswinds with the sumo springs? How are they now two years later?
I took off the Sumo Springs and went with Roadmaster. The big difference was Road Master is always connected to the trucks leaf springs. Sumo Springs and Timbren on contact the springs when you are loaded. Roadmaster controls squat and improves the trucks empty ride. Here's my video th-cam.com/video/-eyXMEQlxe8/w-d-xo.html
@@MrTruckTV that's the truck suspension. This video is on the camper suspension with the sumo springs. Did the sumo springs help with handling and sway from the trailer?
@@nickradeke Oh thanks, yes, they worked like shock absorbers and kept the trailer from bottoming out. This trailer had large fresh water tank between the axles and getting too close to the axles. SumoSprings kept the tanks away from the axles.
@@MrTruckTV thank you for the quick reply. My water tanks are in-between my axels and I don't think I will have room for shocks. This might be a good alternative. I actually have sumo springs for my f150 and have not regretted them.
@@nickradeke That's great, I wish there was an easy way to add shocks to trailers, usually not enough room. That's why I tired the trailer sumo springs and sell them. They are the best solution I could find.
Heard you need help moving? Got and f350 DRW and open 2 car hauler ya need hELP I’m there!
Thanks, I have one week to go. Today my daughter and wifes siste are getting their crap out of my barn. Tomorrow Andre is helping tomorrow load a trailer, Monday my youngest son and I move 3 project cars and then I will me two more loads after Christmas. If we cut it short, I'll email you.
Did you install 4 sumo springs or 2?
Usually the rear but they make them for the front also
Sorry, thought you were talking about trucks. Yes all 4, you want them on all your trailer axles.
Thanks for the response. And thanks for the videos!
Hate to be critical, but in your intro, you are talking about the sumo springs, and waving the one in your hand in such a way that it is out of the camera view half the time. Set your product down on a table and carefully move it around so it can be seen from all angles.
"Sumo Trailer Springs gave me more wheel travel and kept the axle from hitting the water tank brackets." I will agree with the second part of your statement, but the first, no, you didn't gain even a frogs hair of suspension travel, in fact, it restricted the travel enough to keep the axle from hitting the tank brace.
At 4:15 and again at 5:33 you refer to the fixed eye end of the spring as the "shackle" which it is NOT, the shackle, and the equalizer end, are one and the same. At 3:28 you refer to the tank as a "hundred and ten gallon fresh water tank" and at 5:12 you refer to the tank as a "hundred and ten gallon fuel tank". OOPS.
It would help to script your videos and then review the finished product for errors and at least add text corrections on the screen at the point of the error. Practically all TH-camrs do this.
Different before and after camera angles make any determination of which is better impossible on the video. What scares me is the amount of flex in the spring attachment bracket in the before shots. Brackets flex and the frame is probably twisting also. Sumo probably stops this, but impossible to tell with the different camera mounting locations before and after.
Yes, you're right. I got in a hurry. I shot before and after on different days and thought I had the camera in the same place I think I had more zoom on the after video. I'm in the middle of moving my office farther in the country and have been rushed all month.
Take a breath Siskel & Ebert...
You are absolutely correct in your comments... I like Mr Truck videos... but this missed the mark a bit...
Is there a link to buy?
Yes, mrtrailer.com/springs.htm Thanks, Kent
To many adds interrupting the video. thumbs down.