SumoSprings for 2025 Toyota Tundra 1794

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Question:

I have squatting on my 2025 Toyota Tundra 1794, I’m right at my 1300lbs payload when pulling my 25ft Airstream even though I use a WD hitch. Are the Blue Sumos enough or should I purchase the yellow Sumos? I don’t want a bumpy ride when I’m not towing. Also I’m send along a picture of my suspension, I will replace the bump stop on the right with a Sumo, can you tell me what the bump stop in the coil spring does and will it affect my Sumos? Thanks, I love this website!

asked by: Monty S

0

Factory Bump Stop
(click to enlarge)

Expert Reply:

Hello again Monty; I would get the black SumoSprings Custom Helper Springs # SS66PV. These have a capacity of 1,800 lbs so it gives you a bit over the blue without overdoing it. SumoSprings are a great choice if you don't want to go with the air bags since they have a minimal impact on ride quality.

That is another bump stop in your picture to help prevent bottoming out. The SumoSprings will engage long before that would so it won't impact their functionality.

expert reply by: Robin H

0

Monty S.

10/22/2025

Thanks for your advice Robin!

Robin H.

10/22/2025

@MontyS happy to help, let me know if you need anything else!

Monty S.

10/22/2025

Robin are the 1400 lb (yellow) Sumo spring and the 1800lb (black) Sumo spring the same length (height)?

Monty S.

10/22/2025

Sorry Robin, I meant the blue & black Sumos springs.

See All (4) Replies to Monty S. ∨

Answer 1

Hey Mike, thanks for reaching out. For your 2026 Tundra SR5 towing a Rockwood Ultra Lite with about 946 lbs of tongue weight, I'd definitely go with the blue 1,400 lb SumoSprings #SS46PV. That's a pretty good-sized tongue weight, and the blue…

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Answer 2

Hey Tommy, you would choose the blue SumoSprings #SS46PV for lighter loads, daily driving, and a softer ride, ideal for occasional towing. While black SumoSprings #SS66PV are better for heavier trucks, frequent towing, and consistent loads, offering…

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Answer 3

Hello Barry, Since you already have a weight distribution (WD) hitch and are only experiencing a little rear sag, I recommend going with SumoSprings. I typically only suggest Timbrens for those who are towing heavy loads regularly, as they can create…

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Answer 4

Hello David, thanks for reaching out. Between the TImbrens and the SumoSprings for your 2024 Toyota Tundra I definitely recommend the Sumos. They have a progressive spring rate so you don't get as rough of a ride when you are unloaded. Since your…

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Answer 5

The trailer hitch I recommend for a 2017 Toyota Sienna is the Draw-Tite Max-Frame Trailer Hitch Receiver part #76112 as it has a hidden design, is rated for use with a weight distribution system, and has a partial trailer connector mounting bracket.…

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Answer 6

Hey Roy, great question! A weight distribution system is actually the first defense against an unlevel towing system because it redistributes the tongue weight to all of the axles so you get much more control. The Air Lift LoadLifter 5000 Ultimate…

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Answer 7

Hi Monty; the Air Lift LoadLifter 5000 Air Helper Springs #AL84JQ will fit as long as you don't have the factory air suspension system on your truck. I also recommend adding the Air Lift WirelessONE Compressor System #AL25980EZ so you can adjust…

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Answer 8

Hey Carlos, the SumoSprings kit part #SS46PV would be a great idea to help provide your rear suspension with additional support when you are carrying the heavier camper that you have. Basically it would just allow your air suspension to not have to…

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Answer 12

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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SumoSprings for 2025 Toyota Tundra 1794

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