{"product_id":"trucfusion-trailer-ramp-springs-for-1-5-shaft-lh-rh-coil-pair-2000-lb-in-torque-90-deflection","title":"TRUCFUSION Trailer Ramp Springs for 1.5\" Shaft — LH\/RH Coil Pair, 2000 lb·in Torque, 90° Deflection","description":"\u003cp\u003e\u003cstrong\u003eTRUCFUSION Trailer Ramp Spring RS16933LH\/RS16933RH is a direct-fit coil spring replacement for 1.5\" round shaft truck gates, engineered to restore smooth raising and lowering of heavy ramps.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your truck or trailer gate is stiff, hard to lift, or doesn't stay supported, worn ramp springs are often the culprit. These replacement coil springs are manufactured to match original specifications for size, torque, and deflection so you can quickly return your ramp to reliable operation without modifying the shaft or support hardware.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these springs affect ramp operation?\u003c\/h3\u003e\n\u003cp\u003eInstalling the correct coil springs reduces the manual force required and stabilizes the ramp through its travel. Each spring delivers a designed deflection and torque that compensates for ramp weight and helps control movement during lifting and lowering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides approximately 90° of deflection for predictable motion.\u003c\/li\u003e\n  \u003cli\u003eDelivers around 2000 lb·in of torque to assist heavy-duty ramps.\u003c\/li\u003e\n  \u003cli\u003eSpecifically made for 1.5\" diameter round shafts to avoid binding.\u003c\/li\u003e\n  \u003cli\u003ePair of left and right coils included for balanced performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical dimensions and fitment details?\u003c\/h3\u003e\n\u003cp\u003eThese springs are produced to match common OEM sizes so swapping out worn units is straightforward. Key dimensional features ensure compatibility with shafts near 1-5\/8\" inside diameter and typical gate hardware.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 1.5\" (1-1\/2\") round shaft installations.\u003c\/li\u003e\n  \u003cli\u003e4\" long ears with 1\/2\" steel round bar terminations for secure anchoring.\u003c\/li\u003e\n  \u003cli\u003eInner diameter approximately 1-5\/8\" (+\/- tolerance) for close fit on the shaft.\u003c\/li\u003e\n  \u003cli\u003eSold as a kit: 2 left-hand and 2 right-hand coil springs included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I avoid installation problems and prolong spring life?\u003c\/h3\u003e\n\u003cp\u003eProper installation and correct shaft geometry are essential to avoid binding and premature wear. These springs are made for round pipe use; installing on square or distorted shafts can impede rotation and damage the coils.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMount on smooth, straight 1.5\" round shafts only; avoid square tubing.\u003c\/li\u003e\n  \u003cli\u003eEnsure anchors and ears seat cleanly without excessive lateral force.\u003c\/li\u003e\n  \u003cli\u003eReplace springs in matched pairs (left and right) for balanced torque.\u003c\/li\u003e\n  \u003cli\u003eInspect shaft and hardware for wear before installing new springs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these springs match my trailer's existing parts?\u003c\/h3\u003e\n\u003cp\u003eThese replacement springs are labeled RS16933LH and RS16933RH to correspond with common OEM left and right ramp coils. If your original part numbers match or your measurements align with the listed dimensions, they should fit without modification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with trailers using RS16933LH and RS16933RH part references.\u003c\/li\u003e\n  \u003cli\u003eDesigned to replicate original torque and travel characteristics.\u003c\/li\u003e\n  \u003cli\u003eWorks best when both left and right sides are replaced together.\u003c\/li\u003e\n  \u003cli\u003eNot intended for use on non-round shafts to prevent binding issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This TRUCFUSION coil spring kit is intended for truck and trailer owners, fleet maintenance technicians, and repair shops needing a reliable, dimension-matched replacement for worn ramp springs. Choose this kit if you have a 1-1\/2\" round shaft gate, want to restore smooth ramp operation, and prefer a direct-fit solution that avoids shaft alteration or custom fabrication.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these springs fit square shafts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These springs are designed for round 1.5\" shafts; mounting on square shafts can cause binding and premature failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the kit include?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit contains two left-hand and two right-hand coil springs (RS16933LH and RS16933RH) sized for 1.5\" round shafts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TRUCFUSION","offers":[{"title":"Default Title","offer_id":48080851959966,"sku":"B0D3GYJ75Z","price":94.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/trucfusion-trailer-ramp-springs-front-view.jpg?v=1785790433","url":"https:\/\/northtrailauto.ca\/products\/trucfusion-trailer-ramp-springs-for-1-5-shaft-lh-rh-coil-pair-2000-lb-in-torque-90-deflection","provider":"North Trail Auto","version":"1.0","type":"link"}