product
CARLI 2017+ FORD SUPER DUTY XXHD +3500LBS PROGRESSIVE LEAF SPRING -1" LIFT
SKU: CS-FFSP-LVL-17-XXHD
$2,872.00USD

CARLI 2011+ FORD SUPER DUTY FULL SPRING PACK U-BOLTS
SKU: CS-FFSPUBK-11

17-24 FORD F250/350 4X4 FULL SPRING REAR BUMP STOP DROP BRACKETS
SKU: CS-FBDR-17-FSP

17-24 FORD F250/350 4X4 FULL PROGRESSIVE LEAF SPRING BUSHING KIT
SKU: CS-FFSPKIT-17

05-24 FORD SUPER DUTY XXHD +3,500LBS PROGRESSIVE SPRING PACK - L18XXHD - 1" LIFT
SKU: AP-FFSP-LVL-08-XXHD
The XXHD Full Replacement Leaf Springs designed for those with constant 3,500lbs in the bed – designed for CAB-OVER campers; although, they will work with ANY 3,5000lb. constant load. This is NOT a leaf spring pack designed to run unloaded, it requires the 3,500lbs load to sit at the intended height and properly function. Being a far heavier spring rate than our standard leaf spring AND designed to operate with a much higher center of gravity, we recommend 2.5″ Remote Reservoir Shocks & custom shock tuning for optimal control and ride quality. Carli offers options for the Pintop King 2.5″ Shocks in both Gas and Diesel XXHD Applications.
– Block eliminating, Full Progressive Spring Pack – Includes new U-Bolts and Rear Bump Stop Drops – 37″ Tire Fitment – Fitment: 2017-24 Ford F250/350 4×4, Diesel 3.5-4.0″ Axle Tube
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- Description
Whether you’re gearing up for an overland adventure with a large cab-over camper or building a rugged off-road rescue rig, our XXHD Leaf Springs are engineered to handle a 3,500 lb constant bed load with ease. Here’s what makes these springs the perfect choice for your heavy-duty needs:
Key Features:
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Heavy-Duty Support:
- Custom designed for Motorsports Safety Solutions, these leaf springs significantly enhance the SRW F350’s max bed-load capability, providing a massive working load capacity that’s both huge on travel and fully progressive.
-
Built for Performance:
- Originally developed for a flagship off-road race-rescue truck that scaled at 11,740 lbs (5,400 lbs front, 6,340 lbs rear), these springs are designed to handle demanding conditions.
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Proven Versatility:
- Ideal for customers with custom flatbeds or large, fixed campers, these springs perform best when the rear axle weight is around 6,500 lbs (confirmed via a certified scale), making them a reliable choice for suspension on your adventure rig.
Important Considerations:
-
Custom Order Lead Time:
- Please note that these springs will have a custom-order lead time to ensure they meet your specific needs.
-
Specialized Shock Tuning:
- The XXHD Leaf Springs require custom-tuned Pintop Shocks (with different tuning than the XHD shocks) to support the high spring rates and load capacity effectively.
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30307 Ranch Rd 12 Suite 400, Dripping Springs Tx 78620
LOCATED IN DRIPPING SPRINGS, TEXAS, THOR OFF-ROAD ARE EXPERTS IN DESIGNING AND BUILDING OFF-ROAD VEHICLES THAT DELIVER THE EXACT PERFORMANCE AND STYLE THAT OUR CUSTOMERS DREAM ABOUT.
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