{"product_id":"aib2c-heavy-duty-trailer-ramp-coil-springs-matched-left-right-set-rs16933-90-deflection-1-2-steel","title":"AIB2C Heavy-Duty Trailer Ramp Coil Springs — Matched Left \u0026 Right Set RS16933, 90° Deflection, 1\/2\" Steel","description":"\u003cp\u003e\u003cstrong\u003eAIB2C Heavy-Duty Trailer Ramp Springs are a left-and-right coil spring pair engineered to assist lifting and lowering heavy trailer ramps and gates with a 90° deflection design.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese trailer coil springs (RS16933LH and RS16933RH) come as a matched set — one left-side and one right-side spring — built from 1\/2\" steel round bar with 4\" long ears and a central helix sized to fit over a 1.50\" diameter shaft. They’re made for use on trucks and trailers where extra leverage and controlled motion are needed to help raise heavy ramps or tailgates. The springs deliver a strong mechanical assist without adding complex hardware, making ramp operation smoother and safer for everyday loading tasks.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these springs make lifting heavy trailer ramps easier?\u003c\/h3\u003e\n\u003cp\u003eThe RS16933 pair provides stored torsional energy that reduces the manual force required to raise or lower a ramp. With a designed 90-degree deflection, the springs supply consistent assist through the typical travel arc of most ramp hinges, smoothing start-and-stop motion and reducing jarring.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e90° deflection tuned for ramp hinge movement\u003c\/li\u003e\n  \u003cli\u003eHalf-inch steel bar for predictable torque and durability\u003c\/li\u003e\n  \u003cli\u003eMatched left\/right pair keeps balance and alignment\u003c\/li\u003e\n  \u003cli\u003eFits standard 1.50\" diameter shafts for simple retrofits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these springs fit my trailer or truck ramp?\u003c\/h3\u003e\n\u003cp\u003eCompatibility depends on shaft diameter, mounting ear length, and available clearance. These springs are designed to fit over a 1.50\" diameter shaft and include 4\" long ears to engage common latch and bracket configurations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts over 1.50\" (1.5 inch) diameter shafts\u003c\/li\u003e\n  \u003cli\u003e4\" ears to accommodate typical hinge brackets\u003c\/li\u003e\n  \u003cli\u003eLeft and right versions supplied to match original orientation\u003c\/li\u003e\n  \u003cli\u003eCommonly used on truck ramps, trailer gates, and heavy tailgates\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and safe are the AIB2C RS16933 springs?\u003c\/h3\u003e\n\u003cp\u003eConstructed from 1\/2\" steel round bar, these heavy-duty coil springs are built for repeated loading cycles and rugged service. Proper installation and inspection are important to maintain safe operation; replace both sides as a matched set if one is worn to preserve balanced torque and prevent uneven stress on the ramp mechanism.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMade from 1\/2\" steel for long service life under load\u003c\/li\u003e\n  \u003cli\u003eSupplied as a left\/right matched set to prevent imbalance\u003c\/li\u003e\n  \u003cli\u003eDesigned to reduce sudden drops and jarring during ramp motion\u003c\/li\u003e\n  \u003cli\u003eRegular inspection recommended for safe performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the left and right coil springs?\u003c\/h3\u003e\n\u003cp\u003eInstallation typically involves supporting the ramp in a safe position, sliding each spring over the shaft in the correct orientation, and securing ears into the mounting slots or brackets. Because springs store energy, use proper tools and safety supports or follow professional guidance if you are unsure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSupport the ramp before removing old springs\u003c\/li\u003e\n  \u003cli\u003eSlide springs onto the 1.50\" shaft with correct left\/right orientation\u003c\/li\u003e\n  \u003cli\u003eEngage 4\" ears into bracket slots and check clearance\u003c\/li\u003e\n  \u003cli\u003eTest ramp motion slowly and re-inspect fasteners and fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The AIB2C Heavy-Duty Trailer Ramp Spring pair is aimed at truck and trailer owners, fleet operators, and maintenance technicians who need a straightforward, heavy-duty spring solution to make loading ramps and gates easier and safer. It’s suitable for retrofit projects on trailers and trucks that use a 1.50\" shaft and require a robust 90° deflection support — ideal for commercial users or anyone handling heavy cargo ramps who wants reliable mechanical assist without complex modifications.\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 a 1.25\" shaft?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, these springs are designed to fit over a 1.50\" diameter shaft; a 1.25\" shaft will not provide a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the left and right springs sold together?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The product includes one left-side and one right-side coil spring as a matched pair.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AIB2C","offers":[{"title":"Default Title","offer_id":67587505455289,"sku":"B0B1WMFRB7","price":109.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/aib2c-front-packaging-springs.jpg?v=1790510848","url":"https:\/\/redleafauto.ca\/products\/aib2c-heavy-duty-trailer-ramp-coil-springs-matched-left-right-set-rs16933-90-deflection-1-2-steel","provider":"Redleaf Auto","version":"1.0","type":"link"}