These full-length progressive spring packs are built by Deaver Spring Mfg specifically for Carli Suspension. These springs were designed as a two-stage spring pack, enabling the truck to still have an admirable weight capacity while offering smooth and comfortable street driving performance.

PROGRESSIVE LEAF SPRINGS 3" LIFT-DIESEL:

• 3" rear lift maintains slight rear-height stance with Carli 3" Systems
• Softens initial spring rate at ride height
• Minimizes axle wrap/wheel hop
• Reduces payload to "light" 3/4-ton capacity
• Capable of 15" of suspension travel with factory shackle
• Fitment: Ram 2019+ 3500 4x4, Diesel with 4.25" Axle Tube
• Will NOT fit trucks that have factory air-assist

PROGRESSIVE LEAF SPRINGS 2" LIFT-AIR RIDE:

• Converts rear to full progressive leaf spring design
• 2" Rear Lift, Matches a 3" Front Suspension Lift
• Minimizes axle wrap & wheel hop & maintains factory payload
• Fitment: Ram 2019+ 3500 4x4, Factory Air Assist
• Includes Sensor, Bag, and Airtank Relocation, Airline, Hardware and Fittings
• Will ONLY fit 3500 trucks that have factory air-assist