If you’re upgrading your van’s suspension with SumoSprings, one of the most important choices you’ll make is selecting the right spring rate. Whether you’re driving a Ford Transit, Sprinter, or Ram Promaster, understanding how the different SumoSpring ratings affect performance will ensure a smoother, safer ride tailored to your needs.
In this blog, we’ll break down the key differences between the 1000 lb, 1500 lb, and 2800 lb SumoSprings so you can make the best choice for your van build or usage style.
✅ What Are SumoSprings?
SumoSprings are maintenance-free, progressive helper springs that replace your factory bump stops. Made in the USA from a proprietary microcellular urethane, they compress under load to add support and improve ride quality—without reducing suspension travel.
🔍 Side-by-Side Comparison
| Spring Rate | Best For | Load Support | Ride Comfort | Towing | Overlanding | Typical Use |
|---|---|---|---|---|---|---|
| 1000 lb | Light builds, passenger vans | ⭐⭐☆☆☆ | ⭐⭐⭐⭐☆ | ⭐☆☆☆☆ | ⭐☆☆☆☆ | Day vans, solo camping, city use |
| 1500 lb | Moderate cargo, occasional towing | ⭐⭐⭐☆☆ | ⭐⭐⭐☆☆ | ⭐⭐☆☆☆ | ⭐⭐☆☆☆ | Weekend campers, light tools |
| 2800 lb | Heavy builds, towing, off-road | ⭐⭐⭐⭐⭐ | ⭐⭐☆☆☆ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐☆ | Full-time vanlife, contractors, trailers |
🔵 1000 lb SumoSprings
Softest ride – for lightly loaded vans
Perfect for passenger vans or minimal builds where comfort is key. These offer subtle support and are great for city driving and occasional getaways. However, they don’t add much lift or stiffness when fully loaded.
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✅ Maintains ride comfort
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✅ Absorbs small bumps
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❌ Not ideal for cargo-heavy builds or towing
🟡 1500 lb SumoSprings
Balanced ride – for moderate loads
The 1500 lb version strikes a middle ground between comfort and support. It’s a solid option for vans carrying camping gear, tools, or occasional trailers without sacrificing too much softness.
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✅ Good support with some comfort
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✅ Reduces sway with light to moderate cargo
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❌ Might sag with full-time loadouts or heavy trailers
🔴 2800 lb SumoSprings
Maximum support – for serious haulers and vanlifers
The go-to choice for fully built camper vans, cargo vans, or vehicles that tow regularly. The 2800 lb SumoSpring compresses less under load, which greatly reduces rear sag and sway. Ideal for crosswinds, gravel roads, and high-speed stability.
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✅ Eliminates suspension sag under weight
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✅ Pairs great with heavy-duty shocks like Falcon or Fox
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❌ Firmer ride when unloaded
🛠️ Installation & Compatibility
All SumoSprings are direct replacements for your factory bump stops. Installation typically takes less than an hour with basic tools—no drilling or modifications required. They’re compatible with factory suspension and most aftermarket shock upgrades.
🧭 Our Recommendation
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1000 lb – For weekenders or people with a light build who want the softest ride.
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1500 lb – For light to moderate builds, especially if you carry some tools or gear.
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2800 lb – For serious builds, full-time vanlifers, tradespeople, or anyone towing.
If you want a complete ride upgrade, pair your SumoSprings with Falcon adjustable shocks or Fox tuned dampers to fine-tune your suspension system for changing loads and terrain.
💬 Final Thoughts
The right SumoSpring spring rate can make all the difference in your van’s handling, comfort, and safety—especially when loaded. Whether you’re building a weekend warrior or a full-time home on wheels, there’s a spring rate that fits your needs.
Need help deciding? Reach out to our team and we’ll help you dial in the perfect setup for your van.