What is a progressive add-a-pack?

A progressive add-a-pack is an addition to your existing leaf springs. It uses springs with a rate that changes based on load, offering a softer ride when empty and more support when carrying weight or towing.

Does this kit come with everything needed for installation?

This kit includes the passenger side progressive add-a-pack springs. It's recommended to consult the manufacturer's installation guide for a complete list of required tools and any additional hardware that may be necessary for proper installation.

Will this kit change my truck's ride height?

While primarily designed to improve ride quality and load capacity, adding leaf springs can slightly alter the rear ride height. The progressive nature of these springs aims to minimize excessive sag under load without significantly lifting the rear when empty.

Carli

Specifications

Brand: Carli
Part #: AS-FPAP-11-PASS
UPC: 883584148913

Carli

Carli 11-16 Ford F250/350 4x4 Progressive Add-A-Pack Passenger

Name: Carli 11-16 Ford F250/350 4x4 Progressive Add-A-Pack Passenger
Brand: Carli
SKU: carli-carli-11-16-ford-f250-350-4x4-progressive-add-a-pack-passenger-t14-818968
Price: 460.22 USD
Availability: InStock

$460.22

Only 1 left in stock

Key Features

Fits 2011-2016 Ford F250 and F350 4x4 models.
Passenger side progressive add-a-pack for rear suspension.
Progressive rate springs offer a softer ride when unloaded and increased support when loaded.
Designed to improve ride comfort and load-carrying capacity.
Well-built with durable materials for longevity.

This part is designed for 2011-2016 Ford F250 and F350 4x4 models. Please verify fitment for your specific vehicle configuration.

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Product Details

If you're looking to improve the rear suspension on your 2011-2016 Ford F250 or F350 4x4, this passenger-side progressive add-a-pack from Carli is a solid option. It's designed to work with your existing leaf spring setup to give you a more comfortable ride and better load-carrying capability without drastically altering your truck's stance.

This add-a-pack features progressive rate leaf springs. What that means is the spring rate changes depending on how much weight is on the rear axle. When the truck is unloaded, the springs are softer, which helps absorb bumps and road imperfections for a more comfortable ride. As you add weight, like when towing or hauling, more of the spring engages, stiffening the rate to prevent excessive sag and maintain control. The springs are well-built with durable materials to handle the demands of truck work and towing.

This kit is for the passenger side only, so make sure you order the correct side for your needs. It's a popular choice for truck owners who want a noticeable improvement in ride quality and handling, especially when their truck is loaded down.