Will this kit affect my truck's towing capacity?

No, the Carli Add-A-Pack is designed to maintain your truck's factory load capacity. It replaces the overload spring with a progressive pack that offers improved ride quality without reducing your truck's ability to haul or tow.

What is the main benefit of a progressive rate spring?

A progressive rate spring gets stiffer as it compresses. This means it can offer a softer ride over small bumps but still provide ample support for heavier loads or larger impacts, making the suspension feel more controlled and comfortable in various situations.

What else might I need to install these leaf springs?

This kit includes the leaf springs, U-bolts, and hardware needed for installation. It's always a good idea to have basic hand tools and potentially a torque wrench on hand, and to refer to the manufacturer's installation guide for specific procedures.

Carli

Specifications

Brand: Carli
Part #: CS-FPAP-11

Carli

Carli Add-A-Pack Rear Leaf Springs - 2011-16 Ford F250/F350 4×4 - 2in Lift

Name: Carli Add-A-Pack Rear Leaf Springs - 2011-16 Ford F250/F350 4×4 - 2in Lift
Brand: Carli
SKU: carli-carli-add-a-pack-rear-leaf-springs-2011-16-ford-f250-f350-4-4-2in-lift-t14-832242G
Price: 1034.69 USD
Availability: InStock

$1034.69

Only 1 left in stock

Fits 2011-16 Ford F-250/F-350 4x4. Carli Add-A-Pack rear leaf springs replace factory overloads for improved ride and traction, adding 2in lift.

Key Features

Fits 2011-2016 Ford F-250/F-350 4x4 models with a 3.5-inch axle tube.
Replaces the factory overload spring with a six-leaf progressive rate pack.
Maintains the truck's original load capacity.
Improves ride quality by mitigating the impact of medium to large bumps.
Provides a more predictable spring rate for smoother engagement and disengagement.
Results in improved ride comfort and better rear-end traction.

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Fits these vehicles

Ford F-250 Super Duty 2011-2016
Ford F-350 Super Duty 2011-2016

Product Details

If you're looking to smooth out the ride on your 2011-2016 Ford F-250 or F-350 4x4, especially when dealing with medium to large bumps, these Carli Add-A-Pack rear leaf springs are a solid option. They're designed to replace the stiff factory overload springs, which often contribute to a harsh ride. By swapping out that single, thick overload leaf for a mini six-leaf progressive pack, Carli has found a way to keep your truck's towing and hauling capacity the same while making the rear suspension much more predictable.

What this means for you is a smoother engagement and disengagement of the rear springs. You'll notice a difference in how the truck handles bumps, leading to improved ride quality and better traction, especially when the bed isn't loaded down. The progressive rate means the springs get stiffer as they compress, but in a much more controlled way than the stock setup. This kit is designed to work with your truck's 3.5-inch axle tube and will provide about 2 inches of lift, helping to level out the stance.

Carli includes all the necessary U-bolts and hardware to get these installed, making it a complete package for this suspension upgrade. When you're looking to get more comfort out of your Super Duty without sacrificing its work capability, this Add-A-Pack is a well-thought-out solution.