Recommended Fix for Sagging 2026 Toyota Sienna
Updated 06/29/2026 | Published 06/19/2026
Products Featured in This Question
Question:
Hello! I have a 2026 Toyota Sienna LE AWD and I am looking to get some help with the rear end sagging under load. I am looking at the spring helpers. Just wondering if the Sumo Springs or Timbrens have any major differences? Which sumo springs would I need for the All Wheel Drive Sienna? It only shows “2 wheel drive” configurations. I just have a vertical hanging bike rack on there Thule Revert 6 bike and the hitch is an eco hitch by Torklift. The rear sags a bit and rides a little harsh so I’d like to get some help there and these spring helpers seem to be the ticket for my application. Thanks in advance. Let me know what you think and I’ll order a set right away. Also, I am a firefighter here in Calgary, Alberta, Canada. Just curious if you offer any first responder discounts on your products. No worries if you don’t, I just figured I’d check. Thanks!
asked by: Braden B
Expert Reply:
Hey Braden,
I do have Timbren Suspension Enhancement System - Coil Spring Suspension - Rear Axle #T58GR for your 2026 Toyota Sienna, but there is not a model of Sumo Springs custom fit to your van just yet. If you want to find a Sumo Springs setup that works for your vehicle, you are able to use the printable template linked below to find which kit will work for you. To measure, you cut the template out, and stick the template between your coils on your unloaded vehicle. The largest size that fits in your coils will be your best fit. Our part number will be "CSS-" followed by the number on the template.
The difference between the Timbren and the Sumo Spring options really just comes down to brand preference. Out of these two brands, I typically prefer the Timbren based on my experiences with their other products.
Are you loading your Sienna down with a lot of cargo, or do you just have a lot of passengers that are in turn causing sag on your suspension? Also, I thank you for your service. We offer free shipping on orders over $99, but there is not a discount for service members or first responders at this time.
Walter E.
6/25/2026
I recently put them on a 2025 le AWD along with a 2” lift kit from Journeys Off Road. The helper springs seem to work as advertised. I hang a dirt bike on a hitch rack and it seems to sag much less than our gen 3 used to when I did the same. So far I am pleased with the product. According to my invoice I used model CSS-1168R so I’d guess the 2026 would be the same.
Jerry B.
6/29/2026
Product Page this Question was Asked From
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
- Vehicle Suspension
- Towing/Load Leveling
- Coil Spring Helpers
- Suspension Only
- Standard Duty
- Rear Axle Suspension Enhancement
- SuperSprings Intl
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
- Shop: Timbren Suspension Enhancement System - Coil Spring Suspension - Rear Axle
- Q&A: Will the Coil SumoSprings Custom Helper Springs Fit a 4WD 2020 Ford Expedition?
- Video: Mount: Firestone Coil-Rite Air Helper Springs on a 2022 Toyota Sienna
- Shop: Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 11 Diodes - Clear Lens
- Shop: Thinline LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 9 Diodes - Clear Lens
- Video: Coil SumoSprings Rear Helper Springs Step-By-Step Installation - 2024 Ford Expedition
- Video: Coil SumoSprings Custom Helper Springs for Coil Spring Suspension: The Breakdown
- Search Results: high noon
- Q&A: Bike Rack for Lectric Lite XP 2.0 On 2019 Corolla Hatchback
- Q&A: Bike Add-On for RockyMounts HighNoon FC Single Bike Rack
- Shop: 1-Bike Add-On for RockyMounts HighNoon FC Solo and HighNoon FC for 2" Hitches - Wheel Mount
- Shop: RockyMounts HighNoon FC Solo Bike Rack for 1 Bike - 1-1/4" and 2" Hitches - Wheel Mount
- Shop: RockyMounts HighNoon FC Bike Rack for 2 Bikes - 1-1/4" Hitches - Wheel Mount
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Search Results: suspension enhancement
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Replacement Propane Gas Detector for an Atwood 31013 Propane Detector
- Video: Choosing the Right Vehicle Suspension Upgrades
- Search Results: trailer wiring
- Article: How to Measure for Trailer Hitch Drop
- Shop: Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: trailer tires and wheels
- Q&A: Firestone Air Bags for 2026 Ford F-350 FX4 Dually
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Q&A: How to Replace a Lance 6-Pin Plug w/ a Standard 7-Way Connector
on Vehicle Suspension
Jason S.
6/24/2026
Hey Brenden. I have a 2021 sienna AWD and have the sumo springs in the rear> I tow a 2200 LBS camper with mine and have noticed a big difference in handling with the helper springs. Before I bought mine, I checked with sumo and they told me they are the same for the AWD model. Also, my dad works toyota and he verified that the rear suspension is the same for the 2wd and AWD model. With all that said my Wife and I love the sumo springs when there is no load on the van we have not noticed a difference in ride but with the camper there is a night and day difference. hope this helps.