2001 Nissan UD1300 Suspension Enhancement

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 Matt, I was seeing some mixed information on this as well, so I reached out directly to my contact at Firestone to confirm. The Firestone Ride-Rite Air Bags w/ Easy Mount Compressor - Wireless Control - Single Path - 5,000 lbs #F44XV will fit…

Hey Mike, welcome back! Both the Firestone Ride-Rite #F2613 rated for 5,000 lbs, and the Firestone Ride-Rite Red Label #F2709 rated for 7,500 lbs will keep you at factory ride height when you aren't towing. All you need to do is run the air bags…

For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle…

Hey Steve, The AirLift airbags with internal jounce bumpers are not able to be added to a system without so you would need to get a whole new system. With that said the system with the internal jounce bumpers is going to create a much rougher ride…

Hello Jake, Thanks for writing in. I double checked with SuperSprings, and there are not any SumoSprings available for the 1992 Ford E-350. I see that you already ordered exactly what I was going to recommend, the SuperSprings Custom Suspension…

Hey Josh! Yes, the Pacbrake Alpha XD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers #PB89RV will fit your Sprinter. This is specifically designed for models with dual rear wheels. The only reason these wouldn't work is if you have the ride…

Hello Jeff, Sounds like you’ve got a big camper (about 4,000 lbs) on your 2024 F-350 dually, and when it’s loaded, the truck feels bouncy and sways a bit. That’s pretty common with heavy campers, especially if the suspension is still stock.…

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…

Hey Brandon - great question, and yes, the FX4 trucks have one extra check. Firestone wants you to measure the distance from the top of your rear axle to the bottom of the bump-stop bracket. If that measurement is 40 mm, 70 mm, or 80 mm, the wireless…

It sounds like the purpose of getting the air helper spring would be to counteract the 1 inch compression you're getting in your rear suspension caused by the pin weight of your 5th wheel. If that's the case, I believe that the AirLift 5000…