Carli AS-FLVLSPKG-CS20IFP-A IFP Shock Pkg FSP for 2005-2025 F250/F350 4x4 Diesel

Vehicle Fitment

• 2005-2019 Ford F250/F350 (4x4, Diesel, All Trims) - 2.5" Lift with Carli Full Progressive Leaf Springs
• 2020-2025 Ford F250/F350 (4x4, Diesel, All Trims) - 3.5" Lift with Carli Full Progressive Leaf Springs

Fitment Notes

• FSP (Full Progressive Spring) valving - designed specifically for use with Carli Full Progressive Leaf Springs; for stock or Add-A-Pack springs, see AS-FLVLSPKG-CS20IFP-B
• Diesel engine only - for gas-engine F250/F350, see AS-FLVLSPKG-CS20IFP-C
• 4x4 only - does not fit 2WD applications
• Lift height varies by generation: 2.5" on 2005-2019, 3.5" on 2020-2025
• Not intended for off-road or aggressive trail use - designed for on-road, towing, and highway driving

Features

• Carli SPEC 2.0" diameter Internal Reservoir (IFP) shocks with proprietary tuning specific to the diesel-weighted F250/F350 platform
• Valved specifically for Carli Full Progressive Leaf Springs for optimized ride quality
• 9.0" front and 12.3" rear wheel travel - improved over factory suspension
• 6063 aluminum shock bodies with corrosion-resistant anodized finish for long service life
• Hardened and chrome-plated 5/8" steel shafts for durability under load
• Premium 5-weight shock oil for consistent damping across a wide temperature range
• Billet laser-etched Carli reservoir clamps included for a clean, branded finish
• Backed by Carli's 1-year manufacturer defect warranty, serviced directly by Carli

Specifications

• Shock Body Diameter: 2.0"
• Reservoir Type: Internal Floating Piston (IFP)
• Shaft Diameter: 5/8" hardened, chrome-plated steel
• Shock Body Material: 6063 aluminum, anodized
• Shock Oil: Premium 5-weight
• Front Wheel Travel: 9.0"
• Rear Wheel Travel: 12.3"
• Lift Height: 2.5" (2005-2019) / 3.5" (2020-2025)
• Valving: FSP (Full Progressive Spring)
• Position: Front and Rear
• Drivetrain: 4x4

Included Components

• 2x Carli SPEC 2.0" IFP Front Shocks
• 2x Carli SPEC 2.0" IFP Rear Shocks
• Billet Laser-Etched Carli Reservoir Clamps
• All necessary installation hardware

Product Description

The Carli AS-FLVLSPKG-CS20IFP-A is a complete front and rear shock package built for diesel-powered 2005-2025 Ford F250 and F350 4x4 Super Duty trucks running Carli Full Progressive Leaf Springs. Using Carli SPEC 2.0" Internal Reservoir (IFP) shocks with FSP-specific valving, this kit is engineered for drivers who prioritize a premium on-road ride - smooth in town, stable on the highway, and composed under tow or hauling loads. It delivers 9.0" of front travel and 12.3" of rear travel, a meaningful improvement over the factory suspension.

Built with 6063 anodized aluminum bodies, chrome-plated 5/8" shafts, and premium 5-weight oil, these shocks are engineered for long service life without sacrificing comfort. The FSP valving is calibrated specifically around the weight of the diesel Super Duty platform and must be paired with Carli Full Progressive Leaf Springs - for stock or Add-A-Pack spring setups, the -B variant is required. Lift height is 2.5" on 2005-2019 trucks and 3.5" on 2020-2025 trucks.