Overview
The Icon Suspension 5-inch rear leaf springs, part 65500, are a pair of progressively rated rear leaf springs with rubber bushings for Ford Super Duty F250 and F350 trucks. The multi-leaf construction is designed to ride smoothly and resist fatigue under load, which limits sagging.
The bottom two leaves are flat to provide a secondary rate, which helps prevent harsh bottom outs and smooths the suspension cycle. ICON recommends its 2.0 Aluminum Series or 2.5 Series Vehicle Specific shocks for best ride quality on or off road.
Key features
- Progressively rated for ride quality
- Multi-leaf construction
- Bottom two leaves flat for a secondary rate
- Rubber bushings included
- Supplied as a pair
Leaf spring ride and load
A leaf spring stack carries the axle load and controls how the rear end moves over bumps. Multiple leaves share the load, so each leaf flexes less than a single thick leaf would. Progressive designs stiffen as the spring compresses, which helps the rear hold up under cargo without a harsh ride when empty.
Lift springs raise the rear, so the pinion angle and driveline geometry change. Check the driveshaft angles after installation and adjust them if vibration appears at highway speed. Brake hoses may also need checking, since the axle moves to a new position. Inspect the leaves for cracks, broken leaves and sagging each time the truck is serviced. Replace bushings that look split or dry, since worn bushings let the axle shift and make the rear feel loose.
- Check the U-bolts after the first few drives
- Look at leaf ends for cracks
- Recheck driveline angles after installation
Specifications
| Brand | Icon Suspension |
|---|---|
| Model number | 65500 |
| UPC | 70000577859 |
| Lift height | 5 inch |
| Position | Rear |
| Quantity | Pair |
| Bushings | Rubber, included |
| Construction | Multi-leaf |
| Rating | Progressive |
Vehicle fitment
The springs fit Ford Super Duty F250 and F350 trucks. Confirm the model years that match your truck before ordering.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Lift springs change ride height and suspension geometry, so have the alignment and driveline angles checked after installation. Pair them with the ICON 2.0 Aluminum Series or 2.5 Series shocks recommended for this kit.
What’s included
A pair of 5-inch rear leaf springs with rubber bushings.
Shock absorbers are sold separately. Pair the springs with ICON 2.0 Aluminum Series or 2.5 Series vehicle specific shocks, which are sold separately.
