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2018 White extended cab 6.5 foot bed FX4 Tow package Lariat
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Discussion Starter · #1 ·
Does anyone use sumo springs or other type of solid rubber type of helpers?? If so, how do you like them, and are they working? Are there down sides? Would you install them again? I like the idea of install and forget. But if they don’t work I’ll go with air bags instead.
Mike
 

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Does anyone use sumo springs or other type of solid rubber type of helpers?? If so, how do you like them, and are they working? Are there down sides? Would you install them again? I like the idea of install and forget. But if they don’t work I’ll go with air bags instead.
Mike
I'll chime in.
I looked at the same but ended up with air bags. Glad I went with the bags give plenty of adjustability between different trailers.
Pulling a 18' low hauler cycle trailer loaded around 7500lb's with 4 men in the cab and bed loaded full under a cover added 30psi to the bags.
With a two place enclosed snowmobile trailer 10psi. Truck just floats down the road with ether now.
I did pull the cycle trailer before adding the bags and new the suspension needed a little help.
 

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Does anyone use sumo springs or other type of solid rubber type of helpers?? If so, how do you like them, and are they working? Are there down sides? Would you install them again? I like the idea of install and forget. But if they don’t work I’ll go with air bags instead.
Mike
I have the Sumo Supersprings on my truck, made a world of difference with the squat and bounce while towing/loaded. Adds the better load handling capabilities of air bags without the maintenance. The nice thing about the Sumos is they are progressive in the amount of support they give; meaning the more load they are carrying the firmer they are, and you don't feel them unloaded at all. Very unlike the Timbrens I had on a previous truck, which felt like every time they made contact for the slightest bump when empty felt like you hit a huge speed bump going down the road. Would definitely go with the Sumo Supersprings again.
 

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2018 White extended cab 6.5 foot bed FX4 Tow package Lariat
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Discussion Starter · #4 ·
Thanks for the input. From what I could research, air bags would give the best ride quality once you have the pressures dialed in, but then you have to change the pressure when towing/ not towing/ changing trailers. If the sumos don’t change the unloaded ride quality then that’s the way I’m leaning, just because of install and forget it quality. I worry enough about tire problems going down the road and don’t think I would be able to relax worrying about air bags too.
 

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I am pulling a 9000 lb 5th wheel
After pulling once with nothing
2nd time I put timbren rubber suspension kit
Worked alot better
Camper is a full load dips in the road are quite an experience
Compared to using a 3/4 ton
 

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2020 Ford F150 XLT PS Diesel Supercrew
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I have them on my 2020 supercrew PS and they are worth the money. I have a 8700lb travel trailer with 995 tongue weight and help big time with squat and trailer bounce. Maybe an inch of squat in the back when connected, with a WDH obviously.
 

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2018 White extended cab 6.5 foot bed FX4 Tow package Lariat
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Discussion Starter · #7 ·
I’m towing a 8000lb 5th wheel. Towed it from central Pa out to Yellowstone and a lot of other places out west on a month long trip last year. I put almost 6000 miles on the camper, and close to 7000 on the truck. The truck did very well as far as I’m concerned. The two problems were squat and body roll In windy conditions. Neither was severe enough to make me feel unsafe but I would still like to reduce both. If you check my avatar you can see my rig. As I might be going full time camping in the near future, I’m looking for a permanent solution with little or no maintenance. The camper is comfortable without all the electronic gadgets that will ultimately fail and be costly to repair or replace. Ah well, I’m getting off topic.
It sounds to me like the sumo springs do what they claim without maintenance and don’t affect unloaded ride, like helper springs do. For now I can install and they will work when camper is hooked up and do nothing when not.
thanks everyone
Mike
 

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I run air bags on my 2019 not the Pancake style but the softer ones made by airlift. The pancake style require more psi when unloaded which makes for hard ride. I have them for 1400lb slide in camper which works very well. Truck rides like stock with only 3-5psi in them then air them up to 30 with the camper. Helps with the sway and keeps the rear from bottoming out. Only inconvenience is the fact that you have to air them up and possibility of leaks. I have had them for 20k and no issues plus they see many miles of dirt roads with camper allows lots of flex. I looked at the rubber springs but felt they would make the unloaded ride harder.
 

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Still evaluting options. Anyone have experience with the Roadmaster Active Suspension?
Roadmaster active suspension "prevents" axle wrap by pre-wrapping the axle. It does this by putting tension on the rear half of the leaf spring which results in arching it more than Ford intended, and causes more load to be placed on the rear spring frame mounts. There are people who rave about the RAS, but personally I'm not a fan of how it does what it does.
 

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2018 White extended cab 6.5 foot bed FX4 Tow package Lariat
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Discussion Starter · #11 ·
Pulled the trigger on sumo springs, I’ll let you all know what I think after I install them.
thank you all for your help!
 

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2018 White extended cab 6.5 foot bed FX4 Tow package Lariat
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Discussion Starter · #12 ·
Pulled the trigger on sumo springs, I’ll let you all know what I think after I install them.
thank you all for your help!
Got the sumo springs installed at last oil change . Installed with the spacer witch makes the sumo touch the housing when let off the lift. Seems to have more bounce in the back, so I might take the spacers out . Haven’t towed yet so no comparison there yet. But so far so good.
 

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Got the sumo springs installed at last oil change . Installed with the spacer witch makes the sumo touch the housing when let off the lift. Seems to have more bounce in the back, so I might take the spacers out . Haven’t towed yet so no comparison there yet. But so far so good.
I run mine without the spacers, no issues.
 

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2018 White extended cab 6.5 foot bed FX4 Tow package Lariat
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Discussion Starter · #14 ·
I run mine without the spacers, no issues.
I’m going to let the spacers in for now because I have a long camping trip coming up. So I’ll see how that goes and make a decision then weather to take them out or not. It’s fairly easy to swap them out so I might just put the factory bump stops in until I need the sumos again.
 

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2018 F-150 4x4 SC 3.0L PS Lariat 502A FX4 Trailer Tow Tech Package 3.55 gears
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Any more feed back on the Sumos? I'm currently looking at at air bags or replacement blocks to put some rake back into our truck, specifically when loaded. With the levelling kit up front there's very little rake empty and loaded it looks overloaded.

Note I've had Timbrens before. They did the job but I would prefer something more progressive.
 

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Any more feed back on the Sumos? I'm currently looking at at air bags or replacement blocks to put some rake back into our truck, specifically when loaded. With the levelling kit up front there's very little rake empty and loaded it looks overloaded.

Note I've had Timbrens before. They did the job but I would prefer something more progressive.
Sumo springs are more progressive than timbrens and have a much smoother engagement and ride, both unloaded and loaded. I had a 2014 CCLB (6.5') I installed the timbrens on and hitting a bump or pothole on the highway was always a very hard jarring hit whenever they made contact with the rear axle- and that's after modifying the mounting brackets to have more clearance with the axle when unloaded.
 

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2018 F-150 4x4 SC 3.0L PS Lariat 502A FX4 Trailer Tow Tech Package 3.55 gears
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@navyR113 sounds good. I'll look into the Sumos or Sumos and slightly taller blocks versus the air bags.
 

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@Cummins6712, living in Northern MB, you might want to ask supersprings how much the durometer of the sumospring changes from -40C to +20C. I have an E-350 with a 4x4 conversion that had front bump stops from a 2005 F-350. As soon as the weather approached -20C, those bump stops turned into rocks. Ford had updated their F-350 bump stops the next year, and so I did the update and found it to be an order of magnitude better, but still stiffer in extreme cold.

Incidentally, that van runs Roadmaster Active Suspension in the rear (in addition to an overload leaf), and I have to say that I am really happy with it. Bulletproof, does what it says, and adjustable...with wrenches.

My F-150 came with air bags; it's too early for me to report how they work; however, I am thrilled with the airbags in my Chevy DRW 3500. As long as they are not leaking. The Chevy has SuperSprings, but they really didn't do the job for heavy loads (4800lb slide in camper). The air bags are great, but they really hinder articulation, which is what I suspect has caused my bags to start leaking. I'll be ordering replacement bags for that truck this winter.
 

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@Cummins6712, living in Northern MB, you might want to ask supersprings how much the durometer of the sumospring changes from -40C to +20C. I have an E-350 with a 4x4 conversion that had front bump stops from a 2005 F-350. As soon as the weather approached -20C, those bump stops turned into rocks. Ford had updated their F-350 bump stops the next year, and so I did the update and found it to be an order of magnitude better, but still stiffer in extreme cold.

Incidentally, that van runs Roadmaster Active Suspension in the rear (in addition to an overload leaf), and I have to say that I am really happy with it. Bulletproof, does what it says, and adjustable...with wrenches.

My F-150 came with air bags; it's too early for me to report how they work; however, I am thrilled with the airbags in my Chevy DRW 3500. As long as they are not leaking. The Chevy has SuperSprings, but they really didn't do the job for heavy loads (4800lb slide in camper). The air bags are great, but they really hinder articulation, which is what I suspect has caused my bags to start leaking. I'll be ordering replacement bags for that truck this winter.
My issue with the roadmaster active suspension is that in order to do what it says (improve load handling characteristics and prevent axle wrap), it pre-wraps the rear axle by pulling on the rear spring eye and holds it there- causing unnecessary stress on the leaf springs. I know there are people who rave about the RAS, but personally I'd rather have the Supersprings which don't cause axle wrap.

Another option is adding a helper leaf spring. Both supersprings and hellwig make options for this.

 
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