AIB2C Trailer Ramp Springs Set RS16933LH/RS16933RH - Heavy-Duty Left & Right, 1/2" Steel, Fits 1.50" Shaft

AIB2C Heavy-Duty Trailer Ramp Springs RS16933LH (left) and RS16933RH (right) are a matched left/right coil-spring pair engineered to ease lifting and lowering of heavy trailer ramps and gates.

These trailer ramp coil springs replace worn or weak ramp-assist springs with a heavy-duty solution built for frequent use on trucks, trailers, and loading gates. Each set includes one left-side and one right-side spring, sized to fit over a 1.50" diameter shaft and designed to deliver a 90-degree deflection that reduces the effort required to operate a ramp. They feature 4" long ears and a 1/2" steel round bar construction for reliable strength under load.

How do these springs make ramp lifting easier?

The RS16933LH/RH springs store and release energy across a 90-degree deflection to counterbalance ramp weight, so the operator feels significantly less resistance when raising or lowering the ramp. Their heavy-gauge steel construction maintains consistent tension through repeated cycles.

• Provides 90° deflection to assist lift and lower motions
• 1/2" steel round bar resists bending and fatigue
• Matched left and right springs ensure balanced operation
• Fits standard 1.50" diameter ramp shafts for direct replacement

What are the key dimensions and fit details?

Each spring includes 4" long ears to hook onto ramp brackets and is formed to slide over a 1.50" diameter shaft. The pair is made to the RS16933LH and RS16933RH specifications to match common trailer manufacturers' ramp-assist mounts.

• 4" long mounting ears for secure bracket engagement
• 1/2" steel round bar thickness for heavy-duty use
• Designed to fit a 1.50" diameter shaft without modification
• Left and right orientation stamped for correct installation

How durable are these springs under heavy use?

Constructed from heavy-gauge steel, these coil springs resist deformation and maintain functional tension through frequent cycles typical of commercial and personal hauling. Properly installed and maintained, they offer long-term service for loading ramps and gates.

• Heavy-duty steel resists wear and metal fatigue
• Coated finish reduces surface corrosion in outdoor conditions
• Engineered for repeated 90° deflection cycles without failure
• Sold as a matched left/right set to prevent uneven loading

Who is this for? These AIB2C RS16933LH and RS16933RH springs are intended for truck and trailer owners, fleet operators, and maintenance technicians who need a reliable, direct-fit replacement to restore ramp assist function. If your trailer ramp or gate is heavy to lift, shows uneven movement, or the original springs are corroded or broken, this matched left/right coil spring set provides a practical upgrade for improved safety and smoother operation.