What is the benefit of a slightly reduced linear rate spring?

A slightly reduced linear rate means the spring compresses more predictably and comfortably under load. This translates to a smoother ride on the highway and better control over rough terrain, as the spring can absorb impacts more effectively.

What does 'shot peened and pre-set' mean for these springs?

Shot peening is a process where small metal beads are blasted at the spring surface, creating compressive stress that increases fatigue life and durability. Pre-setting involves compressing the spring fully before installation, which helps it settle to its final height and prevents sagging over time.

Do these springs come as a pair?

Yes, this product includes a pair of front linear rate coil springs designed for your Ford Super Duty truck.

Carli

Specifications

Brand: Carli
Part #: CS-FLC-05
UPC: 883584135142

Carli

Carli 05-23 Ford F250/F350 4x4 Linear Rate Coil Springs 2.5/3.5in Lift - Pair

Name: Carli 05-23 Ford F250/F350 4x4 Linear Rate Coil Springs 2.5/3.5in Lift - Pair
Brand: Carli
Price: 440.64 USD
Availability: InStock

$440.64

Only 8 left in stock

Carli 05-23 Ford F250/F350 4x4 Linear Rate Coil Springs 2.5/3.5in Lift - Pair Coil Spring Set

Key Features

Fits 2005-2025 Ford F-250 Super Duty and 2005-2025 Ford F-350 Super Duty 4x4 trucks.
Provides 2.5 inches of lift on 2005-2019 F-250/F-350 4x4 Diesel Trucks.
Provides 3.5 inches of lift on 2020-2023 F-250/F-350 4x4 Diesel Trucks (1.5 inches on Tremor Packages).
Features a slightly reduced linear rate for an improved ride comfort and stability.
Each coil spring is shot peened and pre-set to ensure maximum strength and durability.
Custom spring rate is designed specifically for Ford trucks equipped with diesel engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Ford F-250 Super Duty 2005-2025
Ford F-350 Super Duty 2005-2025

Product Details

If you're looking to lift your 2005-2025 Ford F-250 or F-350 Super Duty 4x4, these Carli Linear Rate Coil Springs are a solid option. They're designed to give you the lift you want while improving the ride quality over stock, especially for trucks with diesel engines.

Carli developed these springs with a slightly reduced linear rate. This means you'll get a more comfortable ride on the highway and better stability when you're off-road, without sacrificing the strength needed for tough conditions. Each spring is shot peened and pre-set, which is a process that helps them maintain their shape and strength over time, preventing sagging and ensuring consistent lift height. They're finished in a durable black powdercoat to resist corrosion.

These springs will provide approximately 3.5 inches of lift on 2020-2023 F-250/F-350 4x4 Diesel Trucks, and about 2.5 inches of lift on 2005-2019 F-250/F-350 4x4 Diesel Trucks. Note that on Tremor packages, the lift will be around 1.5 inches. This set includes a pair of front coil springs.