Leaf Spring Bushes for FORD F-350 5th-9th Gen 4WD

5th-9th Gen 4WD F-350 Leaf spring bushes are the polyurethane bush kits used to replace worn rubber bushes at the front eye, rear eye and shackle positions of leaf spring suspension assemblies. The front eye bush connects the front of the spring to the chassis bracket, the rear eye bush connects the rear of the spring to the shackle, and the shackle bush connects the shackle to the chassis. Together, these three positions control the compliance, location and articulation of the entire spring assembly. Worn leaf spring bushes introduce play, spring movement beyond the designed operating envelope and increased NVH, affecting ride quality, load stability and rear axle location consistency.

Quality polyurethane leaf spring bush kits restore correct compliance and spring eye location at each position, reducing unwanted movement, improving load stability and lowering NVH. The 5th-9th Gen 4WD F-350 range covers individual position kits for targeted single-position replacement as well as complete kits covering all positions in a single purchase, saddle insulator and slipper pad kits for vehicle applications, greaseable shackle and pin kits for 4WD and ute platforms, and trade bulk packs for workshop volume requirements. Installation guides are available across most products. Most products are backed by a lifetime warranty.

Why Upgrade 5th-9th Gen 4WD F-350 Suspension?

Leaf spring bushes are among the most heavily loaded bush positions on any vehicle with rear leaf spring suspension. They carry the full weight of the vehicle in rebound, the full load under acceleration and braking, and the lateral forces generated during cornering, all while allowing the controlled articulation that the spring assembly requires to function. Factory rubber bushes in these positions deteriorate progressively, softening and cracking under continuous load cycling and road contamination.

As leaf spring bushes wear, the spring assembly gains play at the eye and shackle mounting positions, allowing the 5th-9th Gen 4WD F-350 rear axle to move beyond its correct operating position and contributing to rear end wander, increased NVH and reduced load stability under towing and carrying conditions. Replacing worn leaf spring bushes with quality polyurethane alternatives restores correct spring eye compliance and location, eliminates play at the mounting interfaces and delivers a more stable, controlled and refined rear suspension character that maintains its performance for longer than factory rubber equivalents.

5th-9th Gen 4WD F-350 Leaf Spring Bush Range

The 5th-9th Gen 4WD F-350 leaf spring bush range includes:

• 5th-9th Gen 4WD F-350 Front Eye Bush Kits: Bush kits for the front spring eye to chassis mounting position.
• 5th-9th Gen 4WD F-350 Rear Eye Bush Kits: Bush kits for the rear spring eye to shackle mounting position.
• 5th-9th Gen 4WD F-350 Shackle Bush Kits: Bush kits for the shackle to chassis mounting position.
• 5th-9th Gen 4WD F-350 Combined Rear Eye and Shackle Bush Kits: Kits covering both rear positions in a single purchase.
• 5th-9th Gen 4WD F-350 Complete Leaf Spring Bush Kits: Kits covering front eye, rear eye and shackle positions together.
• 5th-9th Gen 4WD F-350 Saddle Insulator and Slipper Pad Kits: Replacement insulator and pad kits for the spring saddle and slipper pad positions on applicable classic platforms.
• 5th-9th Gen 4WD F-350 Greaseable Shackle and Pin Kits: Complete rear leaf spring bush kits with greaseable shackle pin hardware for applicable 4WD and ute platforms.
• 5th-9th Gen 4WD F-350 Bulk Trade Packs: High-volume bush packs for workshop use across common 4WD and ute applications.

Why Purchase 5th-9th Gen 4WD F-350 Leaf Spring Bushes?

Allowing worn leaf spring bushes to remain in service results in progressive rear axle compliance drift, increased NVH, rear end instability under load and accelerated wear at the spring eye and shackle mounting interfaces. Replacing them with quality polyurethane bush kits restores correct spring eye compliance and location at each position, eliminating play and delivering a more stable, controlled and refined rear suspension performance from the moment of installation.

For workshops servicing 4WDs, dual cab utes and classic vehicles, 5th-9th Gen 4WD F-350 leaf spring bush renewal is a routine and high-impact service that addresses one of the most common sources of rear end NVH, handling imprecision and load instability on these platforms. With individual position kits for targeted repairs, complete kits for full spring assembly renewal and trade bulk packs for volume requirements, the range provides the right solution for every service scenario.

Installation and Support

5th-9th Gen 4WD F-350 Leaf spring bush kits are designed for accurate installation at the front eye, rear eye and shackle mounting positions of the leaf spring assembly. Installation times range from approximately one to three hours depending on the application and number of positions being renewed. Installation guides are available across most products to support both professional workshops and experienced DIY users. For additional technical assistance, a dedicated support team is available to help ensure correct product selection and fitment for the specific platform.

Repair and Upgrade

5th-9th Gen 4WD F-350 Leaf spring bushes are manufactured from high-strength polyurethane engineered to withstand the compressive load, articulation cycling and environmental exposure that leaf spring mounting positions are subject to in everyday and demanding use. Resistant to oil, heat and road contaminants, polyurethane leaf spring bushes maintain their compliance characteristics for longer than factory rubber alternatives, delivering more consistent spring eye location and rear suspension performance throughout their service life. Most products are backed by a lifetime warranty.

Who 5th-9th Gen 4WD F-350 Leaf Spring Bushes Are For

5th-9th Gen 4WD F-350 Leaf spring bushes are a practical solution for:

• Professional workshops carrying out rear suspension servicing on classic vehicles, 4WDs, dual cab utes and commercial vans requiring correct polyurethane leaf spring bush renewal at any front eye, rear eye or shackle position.
• Experienced DIY users replacing worn leaf spring bushes at individual positions or across the complete spring assembly to restore correct compliance, reduce NVH and improve rear end stability.
• 4WD and dual cab ute owners servicing leaf spring assemblies as part of routine maintenance, pre-trip preparation or post-modification renewal, including platforms where greaseable shackle hardware is available as an upgrade.
• Classic and restoration vehicle owners requiring correct polyurethane leaf spring bush kits for front eye, rear eye, shackle, saddle insulator and slipper pad positions across a broad range of Australian, British, European and Japanese classic platforms.

The right leaf spring bush kit restores correct spring eye compliance and location at every renewed position, eliminates rear end play and NVH and delivers a more stable, controlled and refined rear suspension performance every time.

Shop 5th-9th Gen 4WD F-350 Leaf Spring Bushes

Explore the full 5th-9th Gen 4WD F-350 leaf spring bushes range and find the right kit for your vehicle. With front eye, rear eye and shackle bush kits, complete spring assembly kits, saddle insulator and slipper pad kits, greaseable shackle and pin kits and trade bulk packs across a broad range of classic, 4WD, ute, commercial and international vehicle platforms, you can renew every leaf spring bush position accurately and complete every rear suspension service with confidence.