--- product_id: 74011730 title: "SuperSprings SSR-307-47 Set of Rear SumoSprings with Mounting Hardware" brand: "supersprings" price: "¥123638" currency: JPY in_stock: true category: "Super Springs" url: https://www.desertcart.jp/products/74011730-supersprings-ssr-307-47-set-of-rear-sumosprings-with-mounting store_origin: JP region: Japan --- # Up to 1,500 lbs load-leveling Maintenance-free one-piece design Handmade in USA with lifetime warranty SuperSprings SSR-307-47 Set of Rear SumoSprings with Mounting Hardware **Brand:** supersprings **Price:** ¥123638 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your Ram’s rear suspension—ride stronger, smoother, smarter! ## Quick Answers - **What is this?** SuperSprings SSR-307-47 Set of Rear SumoSprings with Mounting Hardware by supersprings - **How much does it cost?** ¥123638 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/74011730-supersprings-ssr-307-47-set-of-rear-sumosprings-with-mounting) ## Best For - supersprings enthusiasts ## Why This Product - Trusted supersprings brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Maximize Your Payload:** Custom-engineered to add up to 1,500 lbs of load-leveling capacity, so your Ram 1500 handles heavy loads like a pro. - • **Built Tough, Built Local:** Proudly handmade in the USA with premium micro-cellular urethane and backed by a Limited Lifetime Warranty for peace of mind. - • **Zero Maintenance, All Gain:** Forget compressors and leaks—our one-piece urethane design means hassle-free, reliable performance every mile. - • **Smooth Ride, Sharper Control:** Progressive spring rate reduces rear sag and body roll, delivering balanced handling and comfort on any terrain. - • **Upgrade Your Suspension Game:** Fits rear applications on 2009-2027 Dodge Ram 1500 models, transforming your truck’s ride quality and stability instantly. ## Overview The SuperSprings SSR-307-47 Rear SumoSprings are a premium suspension upgrade designed specifically for 2009-2027 Dodge Ram 1500 trucks. Engineered to add up to 1,500 lbs of load-leveling capacity, these maintenance-free, one-piece micro-cellular urethane springs improve ride height, reduce rear sag, and enhance driver control by minimizing body roll. Handmade in the USA and backed by a Limited Lifetime Warranty, they offer a durable, leak-proof alternative to traditional air suspension systems, perfect for both daily driving and off-road adventures. ## Description SumoSprings are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and ride comfort. They are maintenance free, do not leak air, and do not require airlines or compressors. SumoSprings are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications. They are manufactured from proprietary closed micro-cellular urethane providing a smooth and progressive spring rate with superior damping properties. ## Features - Vehicle Compatibility: Custom-engineered for 2009-2010 Dodge Ram 1500 & 2011-2027 RAM 1500; fits rear applications and adds up to 1,500 lbs of load-leveling capacity at 50% compression - Progressive Load Support: SumoSprings compress under increasing weight to reduce rear-end sag, improve ride height, and maintain balanced handling - Maintenance-Free Technology: Features a one-piece design that requires no air lines or compressors for a reliable alternative to traditional air systems that will not leak or rupture over time - Enhanced Driver Control: Manufactured from high-grade micro-cellular urethane with a progressive spring rate to help reduce body roll during cornering and soften harsh rebounds on uneven terrain - Proudly Made in the USA: Handmade in the United States and backed by a Limited Lifetime Warranty, ensuring long-term reliability and performance for your off-road or daily driving adventures ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01E1SVJ6K | | Best Sellers Rank | #592,296 in Automotive ( See Top 100 in Automotive ) #440 in Automotive Replacement Suspension Coil Springs | | Brand | SuperSprings | | Customer Reviews | 4.6 4.6 out of 5 stars (258) | | Date First Available | April 9, 2016 | | Exterior | Painted | | Item Weight | 12.01 pounds | | Item model number | SSR-307-47 | | Manufacturer | Supersprings International, Inc. | | Manufacturer Part Number | SSR-307-47 | | Model | SSR-307-47 | | Position | Rear | | Product Dimensions | 14 x 9 x 5 inches | | Special Features | Compress up to 80% of original height with full memory rebound, Improves overall driver control and ride comfort, Made from patented micro-cellular urethane, One-piece unit attached on one side used as a replacement/upgrade to factory bump stops, progressive spring rate with superior damping properties | ## Images ![SuperSprings SSR-307-47 Set of Rear SumoSprings with Mounting Hardware - Image 1](https://m.media-amazon.com/images/I/612nhSwlVmL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/74011730-supersprings-ssr-307-47-set-of-rear-sumosprings-with-mounting](https://www.desertcart.jp/products/74011730-supersprings-ssr-307-47-set-of-rear-sumosprings-with-mounting) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-12*