Carli Suspension AP-DFSP-13-XXHD XXHD Progressive Leaf Spring 1-2 Inch Lift 3500 Lbs Load Rating

The Carli Suspension AP-DFSP-13-XXHD is an extra-extra heavy-duty progressive leaf spring designed for 2013-2023 Ram 3500 4x4 trucks carrying constant loads of 3,500 pounds or more. Built by Deaver Spring Manufacturing to Carli's specifications, this full-length progressive spring pack is engineered specifically for extreme-duty applications such as cab-over campers, fully equipped service bodies, or off-road rescue rigs.

Key Features:

• Designed for constant 3,500 lb bed loads - not intended for unloaded operation
• Progressive rate design allows smooth cycling throughout suspension travel
• Provides 1-2 inch rear lift to maintain proper stance with heavy loads
• Supports rear axle weights up to approximately 6,500 lbs
• Requires 2.5-inch remote reservoir shocks with custom tuning for optimal performance
• Minimizes axle wrap and wheel hop under heavy load conditions
• Manufactured from premium-grade steel for long-lasting durability

Important Notes:

• This spring pack requires a constant 3,500 lb load to sit at intended height and function properly
• Custom order item with extended lead time
• Fits 2013+ Ram 3500 4x4 diesel models with 4.0-4.25 inch axle tubes
• Will NOT fit trucks equipped with factory air-assist suspension
• Recommended for trucks with rear axle weight around 6,500 lbs (verified on certified scale)

This XXHD spring pack is the ultimate solution for overlanders with large cab-over campers, commercial operators with heavy service bodies, or anyone running a heavily-laden adventure rig that demands maximum load capacity without compromising suspension performance.