{"itm": "168431145270", "title": "Wyckoff Helper Spring Kit 500 LB Leaf Spring Boost for Trucks Vans RVs Towing", "url": "https://azsvinternal.com/item/168431145270-wyckoff-helper-spring-kit-500-lb-leaf-spring-boost-for-trucks-vans-rvs-towing", "price": 125.99, "salePrice": null, "effectivePrice": 125.99, "currency": "USD", "quantityAvailable": 1, "inStock": true, "condition": "New other (see details)", "category": "auto", "categoryName": "Auto Parts & Accessories", "images": ["https://i.ebayimg.com/00/s/MTYwMFgxNjAw/z/~GEAAeSwYfVqId5Q/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/JyMAAeSwLApqId7W/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/JOsAAeSwMZxqId7W/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/PJcAAeSwaQhqId7W/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/Go0AAeSwoYRqId7W/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/MuMAAeSwDe5qId7X/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxMjAw/z/HRIAAeSwLc5qId7X/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTYwMFgxNjAw/z/XsAAAeSw0sVqId79/$_1.JPG?set_id=8800005007", "https://i.ebayimg.com/00/s/MTAzMFgxMTc5/z/FhwAAeSw-89qId7b/$_1.JPG?set_id=8800005007"], "shippingFee": 0.0, "shippingPolicy": "FREE shipping on orders $100+; otherwise weight-based $5-$35 per item with a combined-shipping discount on multi-item orders (extra items half fee), capped at $35/order", "shipsFrom": "Mesa, AZ", "handlingDays": 1, "deliveryEstimateDays": [3, 7], "returns": "Seller Pays Return", "conditionNote": "", "specifics": {"Brand": "Wyckoff", "Manufacturer Part Number": "na", "Country of Origin": "United States", "Performance Part": "Yes"}, "descriptionText": "AZ SUN VALLEY SALES QUALITY PARTS & GEAR FROM THE VALLEY OF THE SUN Wyckoff Helper Spring Kit – 500 LB Load Capacity Haul and tow with confidence. This Wyckoff helper spring kit bolts onto your existing rear leaf springs and adds up to 500 pounds of load support – keeping your truck, van, or RV level, stable, and riding right even when it’s working hard. Key Features Adds up to 500 lbs of load support to a leaf-sprung rear suspension Stops rear-end sag when hauling heavy cargo or hitching a trailer Reduces sway and bottoming-out for a safer, more stable ride Fits many trucks, vans, and RVs with rear leaf springs – verify your spring width and setup Bolt-on installation with included hardware – no cutting or welding Specifications Brand Wyckoff Type Leaf spring helper kit Load Assist Up to 500 lbs additional capacity Works With Trucks, vans, and RVs with leaf spring rear suspension Benefit Reduces sag, sway, and bottoming-out when loaded or towing Condition New Note: Check your vehicle’s leaf spring width and clearance against the kit dimensions in the photos before ordering. Do not exceed your vehicle’s GVWR. Ships fast and carefully packaged from the Valley of the Sun. Questions? Message us – we are happy to help!", "ebayCategoryPath": ["eBay Motors", "Parts & Accessories", "Performance & Racing Parts", "Auto Performance Parts", "Chassis, Suspension & Brakes", "Lift Kits & Parts"], "approxShippingWeightLb": 13.0, "listedSince": "Jun 4, 2026", "watchers": 0}