Suspension Enhancement for 2021 Toyota Sienna  

Hello Nancy, thanks for reaching out. The Firestone Coil-Rite Air Helper Springs #F4155 are NOT going to fit the AWD model of the 2023 Sienna. The only potential option for suspension enhancement would be the Coil SumoSprings Custom Helper Springs…

We do have an air bag suspension enhancement kit that fits your 2021 Toyota Sienna with the Firestone part #F4155 that you referenced.

Hello Juan, Congrats on the new ride! We have 2 options for suspension enhancement for your 2025 Toyota Sienna. The Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle #CSS-1168R, and the Firestone Coil-Rite Air Helper…

By far the best suspension enhancement for your 2021 Toyota Sienna are air helper springs: - Firestone Coil-Rite Air Helper Springs #F4155 The reason the Coil-Rite #F4155 are the best is due to the amount of additional support they add directly to…

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…

Hey Doug! The Firestone Ride-Rite Air Helper Springs #F35FV are the right kit for your 2026 Ford F-350 FX4 dually. However, you will need to measure to be sure it fits. The distance from the top of your rear axle to the top of the jounce bump stop…

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…

Hello William, Thanks for writing in, you are correct the Firestone #F4155 is not a good fit for the 2021 to 2024 Sienna Hybrid. The hybrid models have some key differences in the rear suspension area due to battery placement and tighter coil spring…

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:…

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

Hey Kelvin, welcome back. To flat tow a 2026 Ford Maverick with your Demco Commander II Tow Bar item #DM9511012, I recommend the following parts: Baseplate Kit - Demco Tabless Base Plate Kit item #DM38CV Wiring Harness - Roadmaster Diode 7-Wire to…

Good morning to you as well Steve, and congrats on your new van! I would be more than happy to make a recommendation for you! The best hitch for your 2026 Toyota Sienna, is going to be our etrailer item #e56RR. This is a class III hitch with a…