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2020-2025 GM HD 8" MAX 3.3 Lift Kit w/ 3.3 Falcon Shocks (42-30840), image 1 of 4
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2020-2025 GM HD 8" MAX 3.3 Lift Kit w/ 3.3 Falcon Shocks (42-30840)

Sold by Dirty Garage

$4,729.95

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About this product

Description

The ReadyLIFT 8-inch MAX3.3 Suspension System is a premium lift kit for 2020-2025 Chevy Silverado and GMC Sierra 2500/3500 HD trucks. This performance-focused kit is designed to improve stance, performance, and capability, clearing the way for larger wheels and tires. The system features vehicle-specific performance-tuned Falcon 3.3 shocks on all four corners, which provide a better-than-factory feel and are ideal for daily driving, off-road excursions, and tow/haul duties.

Features
  • Delivers 8 inches of lift.
  • Includes Xtreme-Duty fabricated 4130 chromoly steel upper control arms with corrected ball joint angles.
  • Features Falcon 3.3 Fast Adjust Dampers, offering a wide range of adjustability with two separate knobs.
  • The 3.3 dampers have a 3-Position Fast Adjust Knob (Soft, Custom, Firm) and an 8-Position Micro Adjust Dial for refined damping.
  • Includes heavy-duty fabricated steel components utilizing 3/16-inch and 1/4-inch steel plate.
  • Features laser-cut, CNC formed heavy-duty front and rear drop crossmembers.
  • Comes with a full-coverage differential skid plate constructed from 3/16-inch steel plate.
  • Includes new cast iron OE-style knuckles and forged torsion keys with the proper amount of indexing.
  • Torsion bar relocation brackets eliminate the traditional lowering of the torsion bars, improving ground clearance.
  • Includes crucial differential drop brackets, CV axle spacers, and OE style cast rear lift blocks.
Notes
  • Some GM HD trucks equipped with a Tow Package may require custom-length U-bolts purchased separately.
  • Vehicle alignment and headlamp aim must be checked and adjusted after product installation.
  • If the vehicle is equipped with Advanced Driver Assistance Systems (ADAS), these systems may require recalibration.
Compatibility Notes
  • Fits 2020-2025 Chevy Silverado and GMC Sierra 2500/3500 HD trucks.
  • Does not work with AT4X or ZR2 models due to factory Multimatic shocks that cannot be replaced.
  • The Single Cab configuration has not been validated for fitment and drivability by ReadyLIFT.
  • Factory wheels can be used if wheel spacers are utilized.
Tire Fitment
  • Allows for up to 37x12.50 tires on a 20x9-inch wheel with a 0 offset.
  • Maximum tire diameter is 38 inches.
  • Maximum tire for no rub is 38x12.50 on a 9-inch wide wheel with 0 offset.
Specs
  • Lift Height: 8 inches.
  • Shock Type: Falcon 3.3 Fast Adjust Dampers (front are coilover/remote reservoir, rears are smooth body/piggyback).
  • Upper Control Arm Material: Xtreme-Duty fabricated 4130 chromoly steel.
  • Crossmember Material: 3/16-inch and 1/4-inch steel plate.
  • Skid Plate Material: 3/16-inch steel plate.
  • Kit Contents: Crossmembers, Cast Iron Knuckles, Fabricated UCAs, Falcon Shocks, Forged Torsion Keys, Torsion Bar Relocation Brackets, Differential Drop Brackets, CV Axle Spacers, Rear Lift Blocks, and Skid Plate.

Description supplied by Dirty Garage through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.

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Current listing
$4,729.95
Shop at Dirty Garage