2020–2027 CHEVROLET SILVERADO 2500HD / 3500HD & GMC SIERRA 2500HD / 3500HD (T1 HD PLATFORM) – LOGIQ DUAL-SPRING LEAF-ASSIST LOAD-LEVELING AIR SPRING KIT WITH 6,400 LB CAPACITY, OEM 5TH WHEEL COMPATIBILITY & LIMITED LIFETIME WARRANTY

Unlock your current-generation GM HD's fullest potential with the LOGIQ Air Spring Kit — a 100% factory-assembled, bolt-in four-air-spring leaf-assist system engineered specifically for the 2020+ Chevy Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD T1 HD platform. This kit uses a unique dual-spring-per-side configuration (four total air springs) with dual rolling sleeve technology tuned to match the ride frequency of the HD front suspension — delivering the smoothest possible ride in a class of trucks notorious for harsh unloaded ride quality. Whether you're running a 2023 GMC 3500 DRW Denali towing an 18,000 lb 5th wheel (per verified customer review: "rides empty as nice as my wife's 1500 Denali"), tackling I-840 overpasses with your 2021 GMC 3500 and 39ft fifth wheel RV (verified: eliminated porpoising completely), leveling your 2024 AT4X HD for towing without compromising unloaded ride, or hauling a "huge fifth wheel toy hauler" behind your 2025 GMC 2500, LOGIQ delivers premium T1-HD-platform-specific air suspension that reviewers unanimously rate 5-star.

Every detail is engineered for the real-world 2020+ GM HD platform. Unlike cheaper competitors' double-bellow airbags, LOGIQ's sleeve-style airbags connect the frame to the leaf springs, mimicking semi-truck style air suspension that RETAINS full suspension travel. The result: "you won't even know the bags are there when unloaded" per verified customer review of a 2025 GMC 2500. The dual rolling sleeve air springs deliver 6,400 lbs of total load capacity at 150 PSI, with a wide 5–150 PSI operating range. Mounts between the frame rail and leaf pack with built-in locating features for precision fitment — verified customer review: "The precision of the bracket fitment was very impressive." No drilling, no welding, no guesswork. If your truck has factory overload springs, the LOGIQ kit replaces them and includes the overload spring removal hardware. MAJOR UPGRADE from previous generation: this kit IS compatible with the factory OEM 5th wheel hitch, eliminating the puck system incompatibility that plagued the 2016-2019 trucks.

Pair the kit with your choice of LOGIQ Air Management Package (AMP) or run it with the included Manual Inflation Kit for app-free, wiring-free simplicity. The AirIQ HD2 (2-channel smart manifold with Heavy-Duty compressor, up to 2.5x faster than competitors) delivers best-in-class smart air control with trailer presets — verified by multiple customer reviews including a 2024 AT4X HD owner who praised the compressor's internal voltage monitoring (no keyed power relay needed). The AirIQ SD2 pairs the same 2-channel smart manifold with the Standard Duty compressor — verified by a 2025 GMC 2500 owner. The AirIQ SD1 gives you a sophisticated 1-channel setup with paired rear controls. All AMP options are controlled via the free AirIQ App or the optional AirIQ Remote. Add the 2-Gallon Aluminum Boost Tank for lightning-fast lifts and sustained air delivery. LOGIQ customer service is universally praised across all verified reviews — multiple customers specifically call out "Frankie Acuna" by name for going above and beyond.

Key Highlights:

• Dual-spring-per-side leaf-assist system — 4 total air springs
• Fits 2020–2027 Chevy Silverado 2500HD/3500HD & GMC Sierra 2500HD/3500HD (T1 HD)
• 6,400 lb total load capacity at 150 PSI
• Wide 5–150 PSI operating range
• Dual rolling sleeve air springs — "semi-truck style" air suspension
• Tuned to match T1 HD front suspension frequency
• RETAINS full suspension travel (unlike bellow-style competitors)
• Fits trucks with OR without factory overload springs
• Replaces factory overload springs — IMPROVES ride & capacity
• Overload Spring Removal Hardware INCLUDED
• Mounts between frame rail and leaf pack — no drilling, no welding
• ✓ COMPATIBLE WITH FACTORY OEM 5TH WHEEL HITCH 
• Compatible with 2500HD and 3500HD SRW
• DRW (Dually) requires 88-33XXX-DRW kit + factory wheel/tire specs (or wheel spacer)
• Compatible with AT4X HD (verified by 2024 AT4X HD customer)
• 1-3" rear lifts require 88-32200-3 bumpstop spacer kit
• Fender Liner Cutting Template provided
• NOT compatible with Cab & Chassis or aftermarket fuel tanks
• Tightest clearance spec (1.83" min tire-to-leaf)
• 100% factory-assembled kit — ready to install
• Choice of Manual Inflation or AirIQ Smart Air Management
• Internal voltage monitoring on AirIQ compressor — no relay needed
• Optional AirIQ Remote and 2-Gallon Boost Tank
• Legendary LOGIQ customer service (Frankie Acuna acknowledged by name in reviews)
• Limited Lifetime Warranty
• FREE ReadyGUARD 5-Year / 60,000 Mile Powertrain Warranty

Specs

Features

• Dual-Spring-Per-Side Configuration: This is NOT a traditional single-bag helper kit. The 2020+ GM HD kit uses TWO air springs per side (four total) with dual rolling sleeve technology.
• Sleeve-Style Design Preserves Full Suspension Travel: Unlike double-bellow airbags from traditional competitors, LOGIQ's sleeve-style airbags connect the frame to the leaf springs. Verified customer review: "I previously had a more traditional bellow style airbag setup on my last truck and the ride wasn't great. With this kit, you won't even know the bags are there when unloaded."
• 6,400 lb Total Load Capacity at 150 PSI: Serious HD-grade load support. Verified handling of 18,000 lb and 39ft fifth wheels on cross-country trips.
• Dual Rolling Sleeve Air Springs: Same technology used in commercial truck and bus air suspensions.
• Tuned to Front Suspension Frequency: LOGIQ tunes the air spring frequency to MATCH the T1 HD front suspension — eliminates porpoising common on HD platforms. Verified customer review: "my 2021 gmc 3500 was porpoising while towing a 39' fifth wheel rv and going over dips at each end of overpasses on I840... put your bags and air compressor on and now that has completely stopped!"
• Replaces Factory Overload Springs (If Equipped): The LOGIQ system delivers BETTER loaded ride comfort and MORE lifting capacity than factory overloads.
• Overload Spring Removal Hardware INCLUDED.
• ✓ COMPATIBLE WITH FACTORY OEM 5TH WHEEL HITCH — Major Upgrade: Unlike the 2011-2019 GM HD kit (which was NOT compatible with the OEM puck system 5th wheel), THIS 2020+ kit IS compatible with the factory OEM 5th wheel hitch. If you have the factory 5th wheel prep package, this kit works without removing the puck system.
• AT4X HD Compatible — Verified: Unlike the 2019+ GM 1500 kit (which excludes AT4X), the 2020+ GM HD kit IS compatible with AT4X HD. Verified by 2024 AT4X HD customer review: "I put the air springs and HD 2 channel compressor on my 2024 AT4X HD to level the truck when towing yet not compromise ride quality when not towing."
• DRW (Dually) Compatible with Additional Kit: 3500HD DRW requires the 88-33XXX-DRW hardware kit (sold separately). DRW trucks must run factory wheel/tire specifications OR add a wheel spacer. Verified by 2023 GMC 3500 DRW Denali customer review.
• Internal Voltage Monitoring Compressor — No Keyed Power Relay Needed: Verified customer review discovered this feature on the HD2 compressor: "This compressor had internal voltage monitoring so it would not start when the truck was not running. Voltage from the alternator is over 13.3V when the truck is on so below 13V the compressor logic locks it out. No keyed power relay needed!" Simplifies install significantly.
• Precision Bracket Fitment: Verified customer review: "The precision of the bracket fitment was very impressive." No shimming, no adjustment required.
• Fender Liner Cutting Template Provided: LOGIQ provides a Fender Liner Cutting Template for installations that require trimming the fender liner for clearance.
• 100% Factory-Assembled Kit: Ships ready to bolt in. Multiple verified customers describe install as "straight forward."
• Mounts Between Frame Rail & Leaf Pack: Pre-engineered locating features reference off the factory frame.
• Covers T1 HD Platform (2020-current): One kit covers the full current-generation GM HD run.
• Compatible with Both Silverado AND Sierra HD: Same chassis, same kit.
• 2500HD AND 3500HD Compatible.
• AirIQ On-the-Fly Air Management: Verified customer: "On the fly air mgmt allows me to soften or stiffen up the ride based on road conditions and winds."
• Choice of Air Management: Default Manual Inflation Kit (included). Upgrade to AirIQ SD1 / SD2 / HD2.
• AirIQ HD2 (Optional): 2-channel Smart Manifold + Heavy-Duty compressor. 2.5x faster than competitors. Verified by 2023 GMC 3500 DRW Denali and 2024 AT4X HD customers.
• AirIQ SD2 (Optional): Verified by 2025 GMC 2500 customer: "The install was straight forward and the parts fit perfectly."
• AirIQ SD1 (Optional): 1-channel Smart Manifold + Standard-Duty compressor.
• AirIQ App Control: FREE download. Verified customer: "The remote for the compressor works great as does the phone app."
• Optional AirIQ Remote: 2-channel wireless remote for app-free quick-access control.
• Optional 2-Gallon Boost Tank: Powder-coated aluminum air tank for faster lifts and sustained air delivery.
• Legendary LOGIQ Customer Service: Multiple verified reviews specifically call out "Frankie Acuna" by name for exceptional support. Lost nut on install? Overnighted replacement. Reviews consistently 5-star for customer service.
• Compatible with Power Running Boards: Verified by 2024 AT4X HD customer — compressor mount is "a little tight" with power running boards but the supplied brackets provide flexibility.
• Limited Lifetime Warranty + FREE ReadyGUARD Coverage.

Fitment

CONFIRMED 5th Wheel Hitch Compatibility: