1999 Ford F-350 Super Duty Suspension Enhancement

Features:

3,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

Installation Notes:

No drilling required for installation

Application requires permanent removal of top overload springs (if equipped)

Application includes models with dual rear wheels

Features:

3,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

Installation Notes:

No drilling required for installation

Application requires permanent removal of top overload springs (if equipped)

Application includes models with dual rear wheels

Features:

2,500-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product can be used for vehicles with or without factory top overload springs

Application includes models with dual rear wheels

Tech Tip:

For vehicles used in off-road rough conditions, SuperSprings recommends adding their Poly Pad mounting kit P1KT; sold separately.

Features:

2,500-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product can be used for vehicles with or without factory top overload springs

Application includes models with dual rear wheels

Tech Tip:

For vehicles used in off-road rough conditions, SuperSprings recommends adding their Poly Pad mounting kit P1KT; sold separately.

Features:

Upgrade your vehicle's suspension with these maintenance-free contact pads. Sturdy polyurethane contact pads reduce sway and noise for a smoother ride. Optional spacer increases preload. Includes 4 pads.

Installation Notes:

No drilling required for installation

Product is designed for vehicles with factory top overload springs

Features:

Upgrade your vehicle's suspension with these maintenance-free contact pads. Sturdy polyurethane contact pads reduce sway and noise for a smoother ride. Optional spacer increases preload. Includes 4 pads.

Installation Notes:

No drilling required for installation

Product is designed for vehicles with factory top overload springs

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

Drilling required for installation

Tech Tip:

Product intended for vehicles equipped with a Reese fifth wheel hitch.

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

Drilling required for installation

Tech Tip:

Product intended for vehicles equipped with a Reese fifth wheel hitch.

Features:

2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

Installation Notes:

No drilling required for installation

Does not fit vehicles with factory top overload springs

Does not fit models with dual rear wheels

Features:

2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

Installation Notes:

No drilling required for installation

Does not fit vehicles with factory top overload springs

Does not fit models with dual rear wheels

Features:

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

Installation Notes:

Drilling required for installation

Compatible with in-bed hitch

Features:

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

Installation Notes:

Drilling required for installation

Compatible with in-bed hitch

Features:

8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

Installation Notes:

No drilling required for installation

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Features:

8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

Installation Notes:

No drilling required for installation

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Features:

Get improved handling with minimal sway and body roll. The StableLoad pads in this suspension enhancement kit feature quick-disconnects and a hinged design so you can easily return to your original ride. Specially treated drill bits included.

Installation Notes:

Drilling into the leaf springs is required, and specially treated drill bits are included, along with detailed drilling instructions

Product designed for vehicles with factory leaf springs and a lower overload spring

Features:

Get improved handling with minimal sway and body roll. The StableLoad pads in this suspension enhancement kit feature quick-disconnects and a hinged design so you can easily return to your original ride. Specially treated drill bits included.

Installation Notes:

Drilling into the leaf springs is required, and specially treated drill bits are included, along with detailed drilling instructions

Product designed for vehicles with factory leaf springs and a lower overload spring

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

Drilling required for installation

Tech Tip:

Product is designed to work only on trucks with a B&W fifth wheel hitch 1105 or 1199R

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

Drilling required for installation

Tech Tip:

Product is designed to work only on trucks with a B&W fifth wheel hitch 1105 or 1199R

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

Drilling required for installation

Not compatible with in-bed hitch; product mounts in same location as hitch brackets

Tech Tip:

Distance from the outside of the truck frame to the inside of the tire must be at least 8"

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

Drilling required for installation

Not compatible with in-bed hitch; product mounts in same location as hitch brackets

Tech Tip:

Distance from the outside of the truck frame to the inside of the tire must be at least 8"

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

No drilling required for installation

Does not fit Cab and Chassis models

Features:

Get improved handling with minimal sway and body roll for your vehicle. Stainless steel StableLoad pads feature quick-disconnects and a hinged design so you can easily return to your original ride. Specially treated drill bits included.

Installation Notes:

Drilling into the leaf springs is required, and specially treated drill bits are included, along with detailed drilling instructions

Product designed for vehicles with factory leaf springs and a lower overload spring

Features:

Get improved handling with minimal sway and body roll for your vehicle. Stainless steel StableLoad pads feature quick-disconnects and a hinged design so you can easily return to your original ride. Specially treated drill bits included.

Installation Notes:

Drilling into the leaf springs is required, and specially treated drill bits are included, along with detailed drilling instructions

Product designed for vehicles with factory leaf springs and a lower overload spring

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

No drilling required for installation

Does not fit Cab and Chassis models

Tech Tip:

Product is compatible with most in-bed hitches, but does not work with B&W or Reese fifth wheel hitches.

Features:

2,800-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.

Installation Notes:

No drilling required for installation

Product will fit vehicles with 5th wheel hitch installed

SumoSprings jounce will replace the factory bumpstop for this application

Features:

2,800-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.

Installation Notes:

No drilling required for installation

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Application includes models with dual rear wheels

Features:

5,000-lb Capacity. Ride-Rite air springs enhance your factory suspension for safety and stability when you are hauling heavy loads. They reduce strain on your rear axle, keep your vehicle level, and adjust to load size for a consistently smooth ride.

Installation Notes:

No drilling required for installation

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Tech Tip:

Not a fit for V10 Gas Engine with Extended Cab and 8 ft Bed.

Features:

5,000-lb Capacity. Ride-Rite air springs enhance your factory suspension for safety and stability when you are hauling heavy loads. They reduce strain on your rear axle, keep your vehicle level, and adjust to load size for a consistently smooth ride.

Installation Notes:

No drilling required for installation

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Tech Tip:

Stock jounce bumper spacers must be on lifted vehicles for installation.

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

Drilling required for installation

Tech Tip:

Product is designed to work only on trucks with a B&W fifth wheel hitch 1105 or 1199R

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

Drilling required for installation

Tech Tip:

Product is designed to work only on trucks with a B&W fifth wheel hitch 1105 or 1199R

Features:

Replace your truck's factory bump stop pads with these thick, durable blocks to get better handling with less sway and body roll.

Installation Notes:

No drilling required for installation

Product does not work with SuperSprings suspension kits

Product designed for vehicles with factory leaf springs and an upper overload spring

Features:

Replace your truck's factory bump stop pads with these thick, durable blocks to get better handling with less sway and body roll.

Installation Notes:

No drilling required for installation

Product does not work with SuperSprings suspension kits

Product designed for vehicles with factory leaf springs and an upper overload spring

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

Drilling required for installation

Not compatible with in-bed hitch; product mounts in same location as hitch brackets

Tech Tip:

Distance from the outside of the truck frame to the inside of the tire must be at least 8"

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

Drilling required for installation

Not compatible with in-bed hitch; product mounts in same location as hitch brackets

Tech Tip:

Distance from the outside of the truck frame to the inside of the tire must be at least 8"

Features:

5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

Installation Notes:

No drilling required for installation

Tech Tip:

Product is compatible with most in-bed hitches, but does not work with B&W or Reese fifth wheel hitches.

Features:

1,500-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.

Installation Notes:

No drilling required for installation

Product will fit vehicles with 5th wheel hitch installed

SumoSprings jounce will replace the factory bumpstop for this application

Features:

3,400-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product does not fit vehicles with factory top overload springs

Application includes models with dual rear wheels

Features:

3,400-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product does not fit vehicles with factory top overload springs

Application includes models with dual rear wheels

Features:

8,000-lb Capacity hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Provides a comfortable ride by absorbing road shock and improving stability. Ideal for trucks with slide-in campers or an in-bed salt spreader.

Installation Notes:

No drilling required for installation

This is a Severe Service kit and should only be used on vehicles with a slide-in camper, salt spreader, or those with a mounted crane or other aerial device, such as on a tow truck.

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Features:

8,000-lb Capacity hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Provides a comfortable ride by absorbing road shock and improving stability. Ideal for trucks with slide-in campers or an in-bed salt spreader.

Installation Notes:

No drilling required for installation

This is a Severe Service kit and should only be used on vehicles with a slide-in camper, salt spreader, or those with a mounted crane or other aerial device, such as on a tow truck.

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Features:

1,800-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product does not fit vehicles with factory top overload springs

Features:

1,800-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product does not fit vehicles with factory top overload springs

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

Drilling required for installation

Tech Tip:

Product intended for vehicles equipped with a Reese fifth wheel hitch.

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

Drilling required for installation

Tech Tip:

Product intended for vehicles equipped with a Reese fifth wheel hitch.

Features:

1,400-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product can be used for vehicles with or without factory top overload springs

Application includes models with dual rear wheels

Features:

1,400-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

Installation Notes:

No drilling required for installation

Product can be used for vehicles with or without factory top overload springs

Application includes models with dual rear wheels

Features:

5,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.

Installation Notes:

No drilling required for installation

Does not fit vehicles with a 5th wheel hitch

Designed for use on vehicles carrying variable Heavy Loads

Features:

5,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.

Installation Notes:

No drilling required for installation

Does not fit vehicles with a 5th wheel hitch

Designed for use on vehicles carrying variable Heavy Loads

Features:

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

Installation Notes:

No drilling required for installation

Tech Tip:

Product is compatible with most in-bed hitches, but does not work with B&W or Reese fifth wheel hitches.

Features:

1,500-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.

Installation Notes:

No drilling required for installation

Compatible with in-bed hitch

Product can be used for vehicles with or without factory top overload springs

Application includes models with dual rear wheels

Features:

3,500-lb Capacity. Custom helper springs install above your vehicle's rear factory leaf springs to prevent sagging when towing or hauling heavy loads. These heavy-duty springs are engineered for constant use. Includes bolt-on installation kit.

Installation Notes:

No drilling required for installation

Product replaces the factory overload springs and requires removal of the springs. Removal of overload springs may require U-bolt and center bolt replacement to be purchased locally if factory hardware is not long enough.

Compatible with in-bed hitch

Product is designed for vehicles with approximately 3 inch wide springs

Tech Tip:

Does not fit models with dual rear wheels.

Features:

3,500-lb Capacity. Custom helper springs install above your vehicle's rear factory leaf springs to prevent sagging when towing or hauling heavy loads. These heavy-duty springs are engineered for constant use. Includes bolt-on installation kit.

Installation Notes:

No drilling required for installation

Product replaces the factory overload springs and requires removal of the springs. Removal of overload springs may require U-bolt and center bolt replacement to be purchased locally if factory hardware is not long enough.

Compatible with in-bed hitch

Product is designed for vehicles with approximately 3 inch wide springs

Tech Tip:

Does not fit models with dual rear wheels.

Features:

2,500-lb Load leveling capacity. Custom helper springs install above your vehicle's rear factory leaf springs to reduce sway and prevent sagging when towing or hauling heavy loads. Includes bolt-on installation kit.

Installation Notes:

No drilling required for installation

Product replaces the factory overload springs and requires removal of the springs. Removal of overload springs may require U-bolt and center bolt replacement to be purchased locally if factory hardware is not long enough.

Compatible with in-bed hitch

Product is designed for vehicles with approximately 3 inch wide springs

Tech Tip:

Does not fit models with dual rear wheels.

Features:

2,500-lb Load leveling capacity. Custom helper springs install above your vehicle's rear factory leaf springs to reduce sway and prevent sagging when towing or hauling heavy loads. Includes bolt-on installation kit.

Installation Notes:

No drilling required for installation

Product replaces the factory overload springs and requires removal of the springs. Removal of overload springs may require U-bolt and center bolt replacement to be purchased locally if factory hardware is not long enough.

Compatible with in-bed hitch

Product is designed for vehicles with approximately 3 inch wide springs

Tech Tip:

Does not fit models with dual rear wheels.

Features:

2,500-lb Load leveling capacity. Custom helper springs install above your vehicle's rear factory leaf springs to reduce sway and prevent sagging when towing or hauling heavy loads. Silent Ride urethane bushings prevent rattling.

Installation Notes:

No drilling required for installation

Product replaces the factory overload springs and requires removal of the springs. Removal of overload springs may require U-bolt and center bolt replacement to be purchased locally if factory hardware is not long enough.

Compatible with in-bed hitch

Tech Tip:

Does not fit models with dual rear wheels.

Features:

2,500-lb Load leveling capacity. Custom helper springs install above your vehicle's rear factory leaf springs to reduce sway and prevent sagging when towing or hauling heavy loads. Silent Ride urethane bushings prevent rattling.

Installation Notes:

No drilling required for installation

Product replaces the factory overload springs and requires removal of the springs. Removal of overload springs may require U-bolt and center bolt replacement to be purchased locally if factory hardware is not long enough.

Compatible with in-bed hitch

Tech Tip:

Does not fit models with dual rear wheels.

Features:

3,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.

Installation Notes:

No drilling required for installation

Does not fit vehicles with a 5th wheel hitch

Designed for use on vehicles carrying variable loads

Features:

3,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.

Installation Notes:

No drilling required for installation

Does not fit vehicles with a 5th wheel hitch

Designed for use on vehicles carrying variable loads