Carli CS-DPAP3-19-425 2-2.5" Rear Add-A-Pack for 2019-2025 RAM 3500 4WD Diesel

Vehicle Fitment

• 2019-2025 RAM 3500 4WD (6.7L Cummins Diesel, AAM 12" rear axle / 4.25" axle tube)

Fitment Notes

• Requires factory leaf-spring rear suspension - will NOT fit RAM 3500 models equipped with factory air-assist/air-ride rear suspension
• Designed to pair with Carli 3" or 3.25" front lift coil springs for a level overall stance
• Not compatible with 2013-2018 3500 trucks (11.5" rear axle) - that generation uses a different Carli SKU

Features

• 5-leaf progressive spring pack replaces the factory lower overload leaf
• Thinner-gauge leaf design improves spring progression and mobility
• Maintains near-factory rear load and payload capacity
• Noticeably improved traction and predictability on and off-road
• Smoother ride over hard impacts and dips, reducing overload-spring bucking
• Machined 1" billet aluminum block included for added lift
• Matched U-bolts and center pins included for secure mounting
• Delivers 2" to 2.5" of total rear lift with block installed
• Purpose-built for the 2019+ AAM 12" / 4.25" axle tube rear end

Specifications

• Lift range: 2"-2.5" (rear)
• Leaf pack: 5-leaf progressive design
• Block: 1" billet aluminum
• Rear axle compatibility: AAM 12", 4.25" axle tube
• Hardware: U-bolts and center pins included
• Install time: approx. 4 hours
• Install difficulty: Light to moderate mechanical skill

Included Components

• 1x Progressive 5-Leaf Add-A-Pack Spring Set
• 1x Billet Aluminum 1" Block
• 1x U-Bolt Set
• 1x Center Pin Set

Product Description

The Carli CS-DPAP3-19-425 is a rear leaf-spring upgrade for 2019-2025 RAM 3500 4WD diesel trucks running the AAM 12" axle with 4.25" tubes. It replaces the factory lower overload leaf with a 5-leaf progressive spring pack, improving spring mobility and traction while keeping rear load capacity close to stock. A machined 1" billet aluminum block is included, bringing total rear lift to 2"-2.5" and pairing well with Carli's 3" and 3.25" front lift coil springs for a level, planted stance.

Installation takes roughly 4 hours and requires only light to moderate mechanical skill, with U-bolts and center pins included for a complete, secure mount. This kit is built for owners running leaf-spring (non-air-ride) RAM 3500s who tow or haul regularly and want better ride quality over rough roads without sacrificing capacity - it's not a standalone lift, but the rear half of a matched front/rear Carli setup.