Features

• Dual-Spring-Per-Side Configuration: This is NOT a traditional single-bag helper kit. The GM HD kit uses TWO air springs per side (four total) with dual rolling sleeve technology — delivering vastly more load capacity, stability, and ride control than single-bag competitors.
• Sleeve-Style Design Preserves Full Suspension Travel: Unlike double-bellow airbags from Firestone, Air Lift, and PacBrake (which connect the frame directly to the axle and eliminate suspension travel), LOGIQ's sleeve-style airbags connect the frame to the leaf springs. This mimics semi-truck style air suspension and RETAINS full factory suspension travel. Verified customer review: "You cannot feel any negative ride quality effects unloaded and loaded like you would with traditional big name double bellow style airbags."
• 6,400 lb Total Load Capacity at 150 PSI: Serious HD-grade load support engineered for real GM 2500HD/3500HD duty cycles.
• Dual Rolling Sleeve Air Springs: Rolling sleeve air springs provide smoother operation, more consistent pressure distribution, and better durability than static-wall airbags. The rolling sleeve design is the same technology used in commercial truck and bus air suspensions.
• Tuned to Front Suspension Frequency: LOGIQ tunes the air spring frequency to MATCH the HD front suspension — delivering harmonized ride performance that eliminates porpoising. Especially effective on Duramax trucks where the front-end "glide" is matched by rear-end glide after installation.
• Replaces Factory Overload Springs (If Equipped): GM HD trucks with factory overload springs will have those removed when installing this kit. The LOGIQ system delivers BETTER loaded ride comfort and MORE lifting capacity than the factory overload stack.
• Overload Spring Removal Hardware INCLUDED: The kit ships with the specific hardware needed to remove factory overload springs.
• Fits Trucks WITH OR WITHOUT Factory Overloads: Both configurations work with this kit.
• Mounts Between Frame Rail & Leaf Pack: The air springs mount in the space between the frame rail and the top of the leaf pack. Pre-engineered locating features reference off the factory frame — no drilling, no welding, no guesswork.
• Covers GMT900 HD + K2XX HD Platforms: The kit works across both GM HD platforms during the 2011-2019 run — mid-GMT900 HD (2011-2014) AND the complete K2XX HD run (2015-2019).
• Compatible with Both Silverado AND Sierra HD: Same chassis, same kit. Both brands supported.
• 2500HD AND 3500HD Compatible: The kit works on both 2500HD and 3500HD configurations. Both share the same rear suspension architecture.
• 3500HD SRW and DRW Compatible: The base kit works on single-rear-wheel (SRW) 3500HD. Dual-rear-wheel (DRW / Dually) 3500HD trucks require the additional DRW Hardware Kit (part #88-33XXX-DRW, sold separately) AND wheel spacers.
• B&W Turnover Ball Gooseneck Compatible — Verified: The kit's mounting location is the SAME as the B&W turnover ball gooseneck hitch mounting. Verified customer review confirms perfect fitment — the kit even includes longer bolts so you don't have to reuse your B&W bolts.
• 100% Factory-Assembled Kit: Ships ready to bolt in. Verified customer: "the kit seems very well made. Installation was easy but time consuming for 1 person. Instructions are much better than most."
• CONFIRMED 5th Wheel Hitch Compatibility: LOGIQ has CONFIRMED compatibility with 6 specific OEM and aftermarket 5th wheel hitches (see Fitment section).
• ⚠️ NOT COMPATIBLE WITH FACTORY OEM PUCK SYSTEM — 2016-2019 GM HD trucks equipped with the factory OEM 5th wheel/gooseneck puck system CANNOT use this kit without removing the puck system. The hitch brackets interfere with the airbag brackets, preventing the air springs from bolting directly to the frame. Customers must choose between keeping the puck system or installing this kit (and installing an aftermarket B&W turnover ball or similar hitch instead).
• OE-Style Low-Frequency Ride Quality: Verified customer: "under normal bumps and bridge/overpass transitions, the rear end has that same gliding feel as the front end. The more harsher bumps, transitions, and jarring are acceptable, as well as more controlled."
• Precision Fitment: Built-in locating features reference off the factory frame and leaf springs.
• Off-Road and Service Lift Compatible: With full suspension travel retained, trucks on service lifts or doing light off-road use won't tear airbags from excessive axle droop (a known failure mode of frame-to-axle bellow airbags).
• Choice of Air Management: The default kit includes a Manual Inflation Kit (airline + Schrader valves + zip ties). Upgrade to one of three AirIQ Smart Air Management Packages for app and remote control.
• AirIQ HD2 (Optional): 2-channel Smart Manifold + Heavy-Duty compressor. Independent driver/passenger air control. Up to 2.5x faster than competitors. Verified by 2017 Chevy 3500 customer who bundled with boost tank.
• AirIQ SD2 (Optional): 2-channel Smart Manifold + Standard-Duty compressor. 2x faster than competitors.
• AirIQ SD1 (Optional): 1-channel Smart Manifold + Standard-Duty compressor. Paired rear controls.
• AirIQ App Control: FREE download. Control inflation, deflation, presets, and monitoring from your phone.
• 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.
• Limited Lifetime Warranty + FREE ReadyGUARD Coverage: LOGIQ air spring kits are backed by a Limited Lifetime Warranty on the air springs, PLUS a FREE 5-year / 60,000-mile ReadyGUARD powertrain warranty.

Fitment

CONFIRMED 5th Wheel Hitch Compatibility:

FAQ

• Does this fit both Silverado HD and Sierra HD? Yes. Chevy Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD share the same chassis, suspension, and frame. The LOGIQ 88-33110 kit works on both.
• Does this fit both 2500HD and 3500HD? Yes. The 2500HD and 3500HD share the same rear suspension architecture. The 3500HD DRW (Dually) configuration requires the additional 88-33XXX-DRW hardware kit AND wheel spacers.
• Does this fit my 2020+ Silverado 2500HD/3500HD? No. GM redesigned the HD platform for 2020 with the T1 HD platform. If you have a 2020+ GM HD, you need a different LOGIQ SKU — check LOGIQ's catalog.
• Does this fit my 2010 or older Silverado/Sierra HD? No. The pre-2011 GMT900 HD and GMT800 HD platforms are not supported by this kit.
• Will this work with my factory OEM 5th wheel/gooseneck puck system? No. The factory OEM puck system (available on 2016-2019 Silverado/Sierra HD trucks as a factory option or dealer-installed package) is NOT compatible with this kit. The puck system hitch brackets interfere with the air spring brackets, preventing proper installation. You have two options: (1) keep the puck system intact and skip this kit, or (2) remove the puck system (patch the 5 holes in the bed) and install this kit alongside an aftermarket hitch like a B&W turnover ball. Verified customer review documents this exact scenario.
• Will this work with a B&W turnover ball gooseneck? Yes — verified compatible. The LOGIQ kit mounts in the SAME location as the B&W turnover ball gooseneck hitch. Verified customer review confirms perfect fitment — the kit even includes longer bolts so you don't have to reuse the original B&W bolts. One of the best hitch pairings for this kit.
• What's the difference between this kit and Firestone, Air Lift, or PacBrake air bags? Significant. The big-name competitors (Firestone, Air Lift, PacBrake) use double-bellow airbags that connect the frame directly to the axle. This eliminates suspension travel and creates a stiff ride — verified customer review calls those "not even airbags, they are more so air helper springs." The LOGIQ kit uses sleeve-style airbags that connect the frame to the leaf springs, mimicking semi-truck style air suspension and RETAINING full suspension travel. Smoother ride loaded and unloaded, no travel loss. Same verified customer: "ReadyAir kit knocks it out of the park."
• Does this really preserve full suspension travel? Yes. Unlike frame-to-axle bellow airbags that act as a positive stop between frame and axle, the LOGIQ sleeve-style airbags act in parallel with the leaf springs. The leaf springs still do their job through their full travel range. You can put the truck on a service lift or do light off-roading without worrying about tearing airbags from excessive axle droop.
• Does this fit my 3500HD Dually (DRW)? Yes, but with additional requirements. 3500HD DRW requires BOTH:
  1. The 88-33XXX-DRW hardware kit (sold separately)
  2. Wheel spacers (sold separately)
     This is a more complex DRW requirement than LOGIQ's Ford Super Duty kits. Confirm you have both components before ordering.
• Does this fit my Cab & Chassis HD? No. Cab & Chassis configurations (common for upfitters, service bodies, flatbeds, hotshot haulers) use different frame geometry.
• Does this fit my 6.6L Duramax diesel? Yes. Both the LML Duramax (2011-2016) and the L5P Duramax (2017-2019) are compatible. Powertrain doesn't affect rear suspension fitment. Verified by 2017 Silverado 3500HD CC LB SRW Duramax customer.
• Does this fit my Allison transmission truck? Yes. Trucks with the Allison 1000 6-speed (2011-2016) and Allison 10-speed (2020+ — not applicable to this kit) transmissions are compatible. Transmission doesn't affect rear suspension fitment.
• Does this fit my gas 6.0L V8 HD? Yes. The 6.0L L96 Vortec V8 is compatible.
• Does this fit my lifted Silverado/Sierra HD? Yes, with the appropriate spacer kit. 1-3" rear lifts require the 88-32110-3 spacer kit (sold separately). Lifts larger than 3" are NOT compatible with this kit.
• Does this fit with aftermarket fuel tanks? No. Larger aftermarket replacement fuel tanks (Transfer Flow, Titan Fuel Tanks, S&B, etc.) conflict with the air spring installation. The factory fuel tank is required.
• Will it work with my 5th wheel hitch? LOGIQ has CONFIRMED compatibility with 6 specific hitches: B&W GNRK1012, GNRK1016, RVK2506; Curt 16411; Reese 56001, 50066. Plus the B&W turnover ball gooseneck (verified same mounting location as kit). If your hitch isn't on this list, contact us before ordering.
• Does this fit the 2016-2019 OEM puck system factory 5th wheel setup? No. This is a critical exclusion to flag. The factory OEM puck system (available on 2016-2019 Silverado/Sierra HD) is NOT compatible. See the dedicated FAQ above for the complete explanation and options.
• How does this compare to the Ford Super Duty LOGIQ kits? Nearly identical configuration — 4 air springs (dual spring per side), 6,400 lb capacity, overload spring replacement, leaf-spring mounted. The GM HD kit is specifically tuned for the GM HD front suspension frequency, uses different mounting hardware, and has different 5th wheel compatibility list. Pricing is the same ($899.95). Choose based on your truck brand.
• Does the frequency tuning really matter? Yes. The GM HD platform has distinct ride characteristics — Duramax trucks in particular have a soft front end that "glides" per verified customer review. By tuning the air spring frequency to match the GM HD front suspension, LOGIQ delivers harmonized ride performance where the rear end matches the front's gliding feel.
• Does this work on top of Bilstein 5100s and Sumo Spring bump stops? Verified customer review documents a 2017 Silverado 3500HD running Bilstein 5100 shocks + Sumo Spring replacement bump stops that performed well — the LOGIQ kit added the final increment of ride quality improvement they were looking for. Compatible with common HD aftermarket shock and bump stop upgrades.
• Do I need an Air Management Package to use this kit? No. The default option is the Manual Inflation Kit (included at no additional cost). Upgrade to an AirIQ AMP when you want smart on-board air with trailer presets.
• What's the difference between the AirIQ HD2, SD2, and SD1 Air Management options? All three provide smart app/remote control. The HD2 has a 2-channel smart manifold (independent driver/passenger control) and the Heavy-Duty compressor (2.5x faster than competitors). The SD2 has the same 2-channel manifold but with the Standard-Duty compressor (2x faster than competitors). The SD1 has a 1-channel manifold (paired rear control) with the Standard-Duty compressor.
• How long does installation take? Expect 4–6 hours for the air springs on a GM HD (longer than the F-150 and GM 1500 due to the 4-spring configuration and potential overload spring removal). Verified customer: "Installation was easy but time consuming for 1 person. Instructions are much better than most." Allow extra time for DRW trucks (which require the additional DRW hardware kit and wheel spacers). Add 3–4 hours for an AirIQ Air Management Package installation. Professional installation recommended.
• What's the warranty? LOGIQ Air Spring Kits come with a Limited Lifetime Warranty on the air springs themselves, PLUS a FREE 5-year / 60,000-mile ReadyGUARD Powertrain Warranty.
• What's included in the kit? (1) Driver Side Air Spring Assembly (dual springs pre-assembled), (1) Passenger Side Air Spring Assembly (dual springs pre-assembled), (1) Hardware Kit, (1) Overload Spring Removal Hardware Kit, and (1) Manual Inflation Kit.

Warranty

The LOGIQ Air Spring Kit is backed by LOGIQ's Limited Lifetime Warranty against defects in materials and workmanship for the original purchaser. Air springs, hardware, overload removal hardware, and included components are covered for the life of the vehicle (original owner).

FREE ReadyGUARD 5-Year / 60,000-Mile Powertrain Warranty is included with every LOGIQ Air Spring Kit — providing supplemental powertrain coverage when the kit is professionally installed per manufacturer specifications. ReadyGUARD registration required; see LOGIQ's warranty page for terms and conditions.

Warranty does not cover damage from accidents, improper installation, overloading beyond specified capacity, exceeding vehicle GVWR, or use on vehicles not listed in the fitment guide. Contact Recon Recovery to initiate a warranty claim.

⚠️ WARNING: This product can expose you to chemicals including Di(2-ethylhexyl) phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov/product.