Guess what happened to my F150's suspension, OK it's Sumo Springs automatic overloads 

I own a 2018 Ford Raptor. After a number of years, the stock leaf springs went flat…losing over an inch of ride height and completely losing the ability to carry any load whatsoever. I replaced my rear leafs with Icon leaf springs set in option 2, adding 2.5” to stock ride height. This adjustment made the stock bump stops functionally useless. In fact they are functionally useless from the factory altogether. I replaced the stock bump stops with Raptor specific Sumo Springs. I used their stock mount, two spacers (as recommended by Sumo after showing them pics and measurements), and added a SVC bump stop pad to the axle. These changes completely eliminated axle wrap, wheel hop, and improved ride and handling, and at least visually improved protection to the frame. Shortly thereafter, I changed the front springs to Geiser 3”. The truck drives better than new by a dramatic margin…with much better ability to carry a load and tow.

I have a set (yellow version) on my rear in my 2008 Tundra Crewmax. I love it. Definitely recommend if you don't want your rear to sag so much.

I love that you actually use these products on your personal vehicles to really see how well they work!!

I use sumo springs under the back of my Frontier. As delivered, they were a little too tall, so I voided the warranty by cutting one and half "bubbles" out of the height. They now work perfectly. I've run them for a couple years. I pull either a 19' travel trailer or a small two horse bumper pull with it, and the sumo's are a great addition.

You're right about that damn blue locktite on the Fords they use to stop them falling apart. That I why I like my Chevy where it is not hard to take off any nuts or bolts since a lot of them have fallen out already. Like a Rock!

Thanks for the idea for my 3500 HD. I really didn't want to spend the money for air bags. Thanks for sharing this video and information Kent. Never heard of Sumo springs before.

Thanks for the review Mr. Truck!

I have a very old version of these which is a steel coil spring that mounts just like these bolted to the axle harsh ride but they help loaded

I installed these a couple of weeks ago on my 2014 Frontier. They are awesome, especially when towing.

I use Sumo Springs on my Tacoma for squat. They work well.

Man, thats slicker than snot on a door knob. Placing an order for the the whole shoot and ka-bang front n rears now. 👍

Great explanation, thanks

Very interesting. I installed air bags on my last pickup, so I'm familiar with the effects. They did require adjustments and some maintenance, so these look like a nice improvement. "Sumo Springs," because you have to wrestle them into place! :)

I have been using Sumo Springs for about 3 years now and they are outstanding. I put the mid strength ones on the rear of my 2001 Sierra 1500 for pulling an 8,000-pound TT. I don't feel the front ones are necessary. My ride quality empty is virtually unchanged. Mine have about a 1/2 to 3/4" gap above the axle. There is very little squat when loaded, but I do use a Weight Distribution Hitch. The truck is very stable when towing and rides great. I put them on and now I don't even think about them because they are maintenance free. Highly recommend for the rear. It was nice to see your video of them in action.

Good info MrTruck

Thank You, Mr. Truck.

I think the words you were searching for to describe the factory piece was "jounce bumper" or "bump stop". I use a similar product called Timbrens. I like the install and forget quality of them.

I bought a shocker hitch for my gooseneck and it made a world of difference

These are game changers

I put AIR LIFT bladder bags in the coil rear springs of my Sienna, adjustable, progressive compression, works like pneumatic sway bar

I used Supersprings, SSA28, on my 09 F150 for 8 yrs. loved them. With the F150, you needed alternate shackles because the standard ones would contact the frame. Quick swap, back in business. I tower a 5th wheel, 1050 pin weight. Without these, I sagged. Highly recommend.

I have them on my 15 Tundra Crewmax 4x4 and they make a huge difference when towing. I’ve been contemplating adding the front ones also.

I use sumo springs on my Silverado trail boss. Love them. I had to order from them directly and there great to work with. the 14-18 model Silverado sumo springs don't fit the new 2019 models. Love them.

Good morning mr truck macy video excellent job suspension great 👍 f150 love ❤️

Very interesting product! Thanks for your expert review. Unfortunately I don't think they make them for my 1995 F150 4wd. I'm getting too much squat even with the trailer tow package

Nice video. I have the 2015 F150 and the stock suspension is a joke when trying to tow. I didn't want air ride so we thought to put on the Timbren's on the rear but the space from the axle to the stock bumpstocks were so large you can tell they were probably never touched from driving. I couldn't see the Timbren's being much better. I'll never load or tow 12,000 lbs like you are, so I changed out the rear suspension from the typical 3 pack (2 long 1 short) leafs to a 5 pack (4 long 1 short) and boy what a different night and day. The truck tows perfectly like it should have all along. With no weight or towing it still drive relatively nice and frankly it's a truck so I'm good. After you loaded the front spacers, it would have been nice to see how the rear axles reacted to them installed. I couldn't help but think it might stiffen that up a bit more even. I wonder putting these on with the improved suspension I now have, boy that would be even better!

Loved the video thanks for the info What engine do you hav in that truck

Love my sumo springs on my 2019 trail boss Silverado. I tow 4 days a week. Love the no maintenance unlike air bags and maintain factory ride while not loaded

Sumos on my 2015 f250 they work great

It would seem if you want to upgrade your suspension you would do it by having your leaf springs upgraded.

I bought these helper springs to help with the sag while towing my TT, unloaded get ready to turn your truck into a horse carriage, when your suspension compress and hit the spring it causes a very harsh ride , I even took the spacer out and yes it was better on lighter bumps but still when the stock suspension compress and hit the spring again harsh ride, basically it stops the dynamics of your suspension travel, and when towing my TT I can fell the truck riding harsh and maybe cause the sumo spring are on my axle cause a very stiff ride and don't allow the suspension to flex down the highway, only good thing about these helper springs is it does reduce sag at a cost for comfort

These look like a great product and easy install. Have you ever compared them to the roadmaster active suspension?

Hello Mr Truck, it’s essentially a nascar spring rubber up front and a bump stop rear. If I am towing most the time, I have found a set of mono tube Bilstein shocks are the best for over all stability and confidence in white knuckle conditions. Plus Bilsteins only loose like 3% of their damping after a hundred thousand miles.

Are these interchangeable with your factory bump stops when your not towing? Looking for a solution for being a weekend warrior towing a 5th wheel toy hauler with a Ram 3500.

What type of recever do you recommend for a 2019 F150 xlt sport? Adjustable none Adjustable?

Thanks for the video. I have been looking for an assist for the bumper sag I get when towing my heavy boat with my 2013 F150.

The whole point of the bump stops is to not be in contact with the axle when parked. Its for situations that when you encounter a large bump and your nearing the end of of your suspension travel, so that your not pushing the axle into the frame rails. Resulting in cracks in the frame rails or axle housing. I am not saying that the sumo springs are not capable of working as advertised. Just saying that there seems to be some confusion about function of the factory bump stops. If your vehicle is loaded and your sitting on the factory bump stops. Than either you are overloaded or your suspension possibly needs replacement due to age and being out of spec.

When I put my Timbrens on ( Install and camera shots like yours on my channel) , I couldn’t find much info on the sumo springs. It looks like they do a good job without punishing you with overly firm ride quality.I find the timbrens to work well but they really are overly firm for an F150. I took the spacer off for 4wd they were hitting to harsh too soon . They definitely help towing my 14 k gvwr dump trailer.

Very nice and keeps your pickup from bouncing around and improves mpg while towing!

I put the supersprings on my 2016 F250. It toes so much better but the unloaded ride is way more stiff. Still recommend though.

Do not use a soap water mix if you don't want to spend forever getting the fronts on. Use a silicone spray. Works much better and installation is much faster and easier.

Maybe the blue ones are better but the black ones are harsh ride. Bouncy as hell

Anybody know how these things do for a truck bed camper?

Anyone have preferences between these or Timbrens? I'd love to see a ride quality comparison.

Looks like a cool product! Are these better than Timbren SDS?

You should have done yellow in the back since your hauling heavy stuff

So what's the correct color for an F53, 16k lb motorhome?

My f350 tremor touched the bump stops a bunch with my 10,600lbs trailer. Installed yellow sumo springs and rode like trash!

Wondering if it would of been easier on the front intall if you jacked the front off the ground which would of expanded the coils allowing easier install. Is that manufacturer recommended install instructions to pound them in with a screwdriver and hammer ??

Kent, these look nice. Would you still recommend them or something else? I’m looking to beef up my 16 F-150 to tow a 6500 Travel Trailer so I’m trying to find the best solution. Thanks.

I use a 3500 for my 1/2 ton sway, squat and overload problems.

I noticed you already had a weight distribution hitch on your truck so obviously the SUMO doesn't take their place???

Will you feel or hear contact between your axle and the sumo spring when you're driving unloaded? With the small space between them I don't see how you wouldn't

Would this work with a bigger block in the Rear differential?

Sumo springs come in blue, black, and yellow with varying capacity/density. How did you choose your black ones?

Looks like these are not intended to be ride leveling because they compress. How much did your bumper sag from the unloaded height when you connected the trailer? What is your tongue weight?

Since you have had the sumo springs for awhile, do you still like them?

Sounds like this may be my solution to wind sway. 2019 F150 FWD, pulling a 20' TT. I feel like I'm floating all over the road.

Hi Mr. Did the ride get stiffer up front?

How much does your trailer weigh?

Mr Truck, I've got a question. I have always run airbags. I'm considering alternatives on my 2021 F250 towing a Montana 5th wheel its about 11,500. Pin is just over 2000 lbs I'm getting about 4 inches of squat. So Summo or AirBags?

Hello Mr. Truck! What are your thoughts on the sumo springs vs the road master active suspension? Trying to beef up my rear suspension on my 2015 f-150 with max tow. Thanks!

Wouldn't having the proper equalizer hitch take care of this problem when towing? I have a lot of sag with my 18 f150 and looked at these. I think the proper way is for me to upgrade my hitch to a heavier one to distribute my weight. Am I thinking correctly.

Does the product for the front compress too or does it just increase the spring rate to slow the oscillation?

How is the ride affected when your unloaded no trailer say hitting bumps ??

MrTruckTV I've got a 1.5 in level on the front of my 2015 F150 6.5 ft box and stock rear. It sits perfectly level with no load. How much will it sag before it engages the Sumo springs? I pull a 7500 lb holiday trailer and want to keep it close to level when hooked to the trailer. Thanks in advance.

When driving empty\unloaded I've heard they cause bounce back. Any find that occurring?

I have a 2014 F350 Dually. I pull a 5th Wheel at a weight of 16,800 lbs. Hitch weight at 2800lbs Would the sumo springs be to my advantage? Also, would suggest sumos for front?

Whose the blacksmith with the carpenter hammer and screwdriver?

Does putting front and rear sumo springs on negatively affect a WDH hitch?

Do they also make these for mid sized trucks?

How does this compare to Roadmaster Active Suspension?

Can I ride with please when you "chase coyotes and bounce and fly in the air" I am afraid to drive that hard anymore to poor. I miss being young and wanting to see how far you can push it. Thanks Mr. Truck.

Do you buy the spacers separate?

Are these compatible with Sulastic shackles?

Just put sumos on my colorado duramax, looking forward to how it feels pulling my 27 ft 6000 lb camper. Do you think the front coil spacer does anything to the ride height up front? If so wouldn't an alignment be needed?

Can you add these with 3.5 inch lift ?

Would these help a 3” sag on my 1500? Trailer is well within weight requirements just heavy at the pin when empty and makes the truck squat. Trying to decide between this or airbags. Airbags seem like such a hassle.

Did you prefer the supersprings or the Sumo?

I thought you were going to smack your truck with that spring. It made me uncomfortable

How do you find the sumossprings after a few years?

So are these a good alternative to air bags? They seem to do the same things but these never have to be adjusted. Do they ever wear out? Seems like the would fall apart after getting squished a million times.

Wouldn't it have been easier to install the front ones by starting at the bottom of the coil and rotating it up?? Or would it not work that way?

Do you still have your f250?

How come no one ever shows the difference in squat before the Sumo Springs and after? That would be a great selling point.

Didn't see them listed for 150 trucks

If you order an HDPP, it comes with an extra spring to begin with. Just saying.....

Don’t need them on front unless you have a plow or something up front

You said this helps prevent tire hop when unloaded?

My 2019 ram 1500 has a 2 inch lift in it. Will these work on my ram? I just purchased a 33 foot travel trailer, I would like to put these on to stop the sag and improve the ride

What was the difference in the initial Squad between stock and sumu Springs

Newbie question, looking to buy a travel trailer for my 2012 f150 fx2 5.0l supercab. There is 130k on the truck, bought it used so the shocks/struts are originals. My question is would the sumosprings help out or just go with Rancho Quicklift Leveling Struts + RS9000XL Adjustable Shocks Set. Or would Rancho be a waste of money. Any advice would be helpful.

Are these better than air bags?

Dose it HELP with the Ford DEATH Wobble on the front end of the F-350 when loaded

Why would you tow 12800lbs with a 1/2ton?

@MrTruckTV: Thank You Sir For These Sumo Springs automatic overloads Sir & GOD BLESS You...........JESUS is LORD

I don't think using a claw hammer and screw driver is an approved method to install this product...lol...

Truck mechanic using a claw hammer

If Sumo Springs are anything like Timbrens, then they are junk. Nothing replaces a good quality airbag.

jeez, this should be a 5 minute video. Plan instead of just starting to talk.