--- product_id: 397999519 title: "RAS RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2022" brand: "ras" price: "51387720₫" currency: VND in_stock: true reviews_count: 5 category: "Ras" url: https://www.desertcart.vn/products/397999519-ras-roadactive-suspension-3611-yhd-fits-ford-f150-4wd-2009 store_origin: VN region: Vietnam --- # 40-50% stronger rear suspension Up to 3'' reduced rear squat 1-hour no-tool installation RAS RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2022 **Brand:** ras **Price:** 51387720₫ **Availability:** ✅ In Stock ## Summary > 🚛 Elevate your F150’s game—tow harder, ride smoother, stress less! ## Quick Answers - **What is this?** RAS RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2022 by ras - **How much does it cost?** 51387720₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/397999519-ras-roadactive-suspension-3611-yhd-fits-ford-f150-4wd-2009) ## Best For - ras enthusiasts ## Why This Product - Trusted ras brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Install in about an hour with no special tools or ongoing maintenance required. - • **Boost Your Haul Power:** Heavy Duty upgrade adds up to 50% strength for superior towing and load handling. - • **Drive with Confidence:** Minimizes sway and body roll for enhanced stability and control on every road. - • **Comfort Meets Performance:** Guaranteed to maintain or improve ride quality whether loaded or empty. - • **Say Goodbye to Rear Squat:** Reduces rear squat by up to 3 inches, keeping your truck level under heavy loads. ## Overview The RAS RoadActive Suspension 3611-YHD is a heavy-duty rear leaf spring upgrade designed for Ford F150 4WD models (2009-2022). It strengthens your rear suspension by 40-50%, reduces rear squat by up to 3 inches, and improves handling by minimizing sway and body roll. This set installs easily in about an hour without special tools or maintenance, ensuring enhanced towing capacity and ride comfort both loaded and unloaded. ## Description Heavy Duty(HD) rear leaf spring upgrade by RoadActive Suspension designed to enable improved towing capability, comfort and everyday performance without hassle. Suspension kit comes as set of variable rated tension coil spring designed to strengthen existing leaf springs by an additional 40-50% over stock factory leaf springs. The mechanically active suspension works to maintain the arch in the existing leaf springs and engage proportionate to force or weight that is applied, absorbing and dissipating load force energy. The unique design helper spring provides greatly improved stability, increased & improved load carrying capabilities, reduction in rear squat, reduced bounce, improved traction and driver control. RoadActive Suspension guarantees 100% ride comfort and maximum performance, with or without load. Once installed with proper tension setting, no adjustments necessary. Heavy Duty kit ideal for most towing and hauling applications or with +2'' of squat while loaded. Review: Great addition to towing with an F-150 Tremor Review: A major difference on F150. ## Features - Heavy Duty(HD) rear leaf spring upgrade by RoadActive Suspension completely simplifies improved load and road handling without maintenance or hassle - Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3’’ - Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability - Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments - Comes as a set. Estimated 1 hour installation with no special tools or maintenance required ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09DFRX6XT | | Auto Part Position | Rear | | Auto part position | Rear | | Best Sellers Rank | #141,333 in Automotive ( See Top 100 in Automotive ) #369 in Car Shock Absorbers | | Brand | RAS | | Brand Name | RAS | | Customer Reviews | 4.6 out of 5 stars 189 Reviews | | Included Components | Leaf Spring | | Included components | Leaf Spring | | Manufacturer | RAS | | Material | Metal | | Material Type | Metal | | Maximum Lifting Height | 3 Inches | | Maximum lifting height | 3 Inches | ## Product Details - **Auto part position:** Rear - **Brand:** RAS - **Included components:** Leaf Spring - **Material:** Metal - **Maximum lifting height:** 3 Inches ## Images ![RAS RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2022 - Image 1](https://m.media-amazon.com/images/I/61hUgI2rHLL.jpg) ## Questions & Answers **Q: Are there counterfeit or knockoff versions of RoadActive Suspension kits?** A: Beware of imitation kits sold online. Only genuine RoadActive Suspension products have been engineered, tested, and warrantied in North Carolina since 1998. Listings with RAS in the title are genuine RoadActive Suspension products. **Q: How much does RAS increase payload capacity?** A: While RAS can strengthen the rear suspension by up to 50% in a progressive manner and can improve the way your truck handles loads; it and no other suspension upgrade can increase the manufacturer weight ratings. **Q: Will RAS fit my lifted truck?** A: From a fitment standpoint, RAS often fits lifted trucks without an issue. Before ordering for your lifted truck, be sure to check your suspension for possible obstructions. If there appears to be an issue please contact RAS directly for assistance. **Q: Will RAS help reduce my rear squat?** A: Yes! While RAS is geared towards improving overall load handling, stability, and performance without hassle; RAS will also help reduce rear squat by up to 2-3 inches. **Q: How is RAS different from other suspension helpers such as air bags?** A: RAS offers a more complete solution, where enhancing stability, reducing rear squat, dampening excessive rebound, improving performance, and providing same-as or better-than-stock ride is just as important as reducing rear squat. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great addition to towing with an F-150 Tremor *by B***O on 10 June 2025* ### ⭐⭐⭐⭐⭐ A major difference on F150. *by N***E on 16 May 2022* ### ⭐⭐⭐⭐⭐ Worth its weight in gold! *by W***9 on 3 August 2025* ## Frequently Bought Together - Original (RAS®) RoadActive Suspension 3611-YHD | Fits Ford F150 4WD 2009-2025 - Husky Liners - Rear Wheel Well Guards | 2015-2020 Ford F-150 (Will not fit Raptor) - Black, 2 Pc. | 79121 - Bilstein 5100 Series Set of Rear Shocks fits 2015 2024 F150 4WD with 0-1" Lift | Optimal Performance | TrendsAuto Decal | 33-253190 --- ## 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.vn/products/397999519-ras-roadactive-suspension-3611-yhd-fits-ford-f150-4wd-2009](https://www.desertcart.vn/products/397999519-ras-roadactive-suspension-3611-yhd-fits-ford-f150-4wd-2009) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*