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Shop / Suspension & Steering / ICON Stage 2 Suspension System 2-3.5" Lift 20-26 GM 2500HD/3500HD L5P
ICON Stage 2 Suspension System 2-3.5" Lift 20-26 GM 2500HD/3500HD L5P
ICON Stage 2 Suspension System 2-3.5" Lift 20-26 GM 2500HD/3500HD L5P photo 1
ICON Stage 2 Suspension System 2-3.5" Lift 20-26 GM 2500HD/3500HD L5P photo 2
ICON Vehicle Dynamics

ICON Stage 2 Suspension System 2-3.5" Lift 20-26 GM 2500HD/3500HD L5P

MPN: K78362
Show TruckDaily DriverTow Pig
$2,959.70
Ships From Supplier · Ships in 3–7 business days
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Want to take your HD truck beyond basic ride improvement and into real performance territory? The ICON Stage 2 Suspension System builds on the foundation of Stage 1 by adding remote reservoir shocks for increased control, cooling, and consistency under hard use. Factory suspension on these trucks is stiff, limited in travel, and quickly overwhelmed when you start pushing speed off-road or adding weight. This system fixes that by giving you increased wheel travel, better damping control, and a much more planted, predictable feel across all driving conditions.

The biggest upgrade here is the addition of remote reservoir 2.5” shocks, which dramatically improve performance when things heat up, whether you’re hitting washboard roads at speed, towing heavy, or running long dirt stretches. You get smoother ride quality on-road, more confidence off-road, and a suspension that doesn’t fade when pushed. Paired with ICON billet upper control arms, this system corrects geometry, improves alignment range, and allows the suspension to cycle properly without binding. The result is a truck that feels controlled, stable, and capable instead of harsh and unsettled.

The included billet aluminum upper control arms are engineered with ICON’s Delta Joint system, combining the strength of a ball joint with the articulation of an uniball while remaining sealed against dirt and moisture. This improves durability for daily driving while still allowing increased suspension travel and alignment correction. The entire system is designed as a 100% bolt-on upgrade with no cutting or fabrication required, using high-quality materials and corrosion-resistant finishes to ensure long-term reliability in harsh environments from job sites to high-speed off-road use.

Warranty
Warranty based on supplier terms

Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.

Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Diesel Power Products warranty policyView complete warranty

Product conditions

Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Professional installation is recommended.

Return eligibility
Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
Return window
Not stated for this product; see supplier terms
Restocking fee
See supplier terms; no product-specific fee stated
Return shipping
Based on the supplier’s return policy; see terms
Made to order
No
Backorder status
Not backordered
Cancellation
Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
Warranty provider
Diesel Power Products
Warranty duration
Product-specific duration not stated; see supplier terms
Compatibility
Listed for specific vehicle configurations
Legal use
Street legal
Processing estimate
3–7 business days supplier processing
Shipping
Shipping calculated at checkout
Signature
No signature requirement
Supplier
Diesel Power Products

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.