Carli Hd Leaf Spring Kit - 2017-23 Ford F250/F350 - +1000 Lbs - 1in Lift
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Carli Suspension
Carli HD Leaf Spring Kit - 2017–2023 Ford F250/F350 - +1000 lbs - 1" Lift
The Carli HD Full Replacement Leaf Spring Kit is designed for trucks carrying a constant 1,000 lb bed load, making it an excellent solution for work trucks equipped with heavy toolboxes or overland setups with consistent rear weight. Engineered to improve ride quality, handling, and load support, this progressive spring system delivers a balanced and controlled driving experience under load. These springs are not intended for unloaded use and require the constant weight to function properly and maintain correct ride height.
Built as a full replacement system, this HD spring pack eliminates the factory block while increasing rear suspension performance and stability. For optimal ride quality and control, Carli recommends pairing these springs with their custom-valved shocks, as off-the-shelf shock valving will not properly complement the increased spring rate and dynamics of this setup.
Key Features:
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Designed for constant 1,000 lb bed load applications
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Ideal for work trucks, toolboxes, and light overland builds
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Full progressive, block-eliminating leaf spring pack
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Provides approximately 1" rear lift at rated load
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Improves ride quality, handling, and load stability
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Includes new U-bolts and rear bump stop drop spacers
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Supports up to 37" tire fitment
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Optimized for use with Carli custom-valved shocks
Notes:
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Not designed for unloaded driving conditions
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Requires approximately 1,000 lbs constant load for proper performance
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Does not perform well with off-the-shelf shock valving
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Recommended wheel spec for 37" tires: maximum 9" width with 5"–5.5" backspacing
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Compatible with 3.5"–4.0" axle tube diameters
Vehicle Fitment:
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2017–2026 Ford F-250 Super Duty
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2017–2026 Ford F-350 Super Duty
SKU: CS-FFSP-LVL-17-HD
