Engineered for heavier Class A motorhomes, the SumoSprings Front & Rear Kit for Ford F53 20Kâ22K chassis delivers increased load support, improved stability, and a smoother, more controlled ride. Designed specifically for Ford F53 4x2 platforms, this complete suspension upgrade helps reduce body roll and sway while enhancing driver confidence without the hassle of air systems. SumoSprings are a patented suspension enhancement made from proprietary closed micro-cellular urethane. Their progressive spring rate engages only when needed, providing superior damping and consistent performance under load. Unlike air bags, SumoSprings are maintenance-free, never leak, and require no compressors or airlines. Each SumoSpring is handcrafted, resulting in natural variations that highlight the quality and craftsmanship behind every piece. This combo kit includes a perfectly matched front kit (SSF-170-40-2) and rear kit (SSR-180-54-1), ensuring balanced performance for 20Kâ22K GVWR motorhomes from brands like Holiday Rambler, Jayco, Tiffin, and Winnebago. Feature List:• Custom fit for Ford F53 4x2 chassis (2011â2025)• Designed for 20Kâ22K GVWR Class A motorhomes• Includes matched front and rear SumoSpring kits• Progressive spring rate for smooth load engagement• Proprietary closed micro-cellular urethane construction• Maintenance-free design no air lines or compressors• Handcrafted for premium quality and durability• 10, 000 lb load support capacityAdditional Info: Weight: 68 lbsDimensions: 25 x 19 x 10 inApplication(s) Summary: Ford F53 4 X 2 (2011-2025); 20k-22k / Holiday Rambler; Jayco; Tiffin; WinnebagoCapacity: 10000 (lbs) Enhances ride comfort on uneven road surfaces Eliminates maintenance & air system failures Increases driver confidence & control | Supersprings International Inc SumoSprings Front & Rear Kit, 20-22K Ford F53 4 X 2 (2011-2025) - K-10-002