READYLIFT | 5-6'' MAX 2.1 Suspension System W/ Shocks | 11-19 Chevrolet Silverado 2500HD / 11-19 GMC Sierra 2500HD | 42-31540

ReadyLIFT 5-6" MAX 2.1 Suspension System - GM Silverado / Sierra 2500HD/3500HD W/ Falcon Shocks 2011-2019 | 42-31540

Overview & Application Notes

Features:

- Vehicle-specific performance-tuned Falcon 2.1 monotube dampers on all four corners.

- Improved dynamic roll control and low-speed damping.

- Dramatic improvement in on-road comfort and off-road performance.

- Optimized fitment for unobstructed suspension travel and articulation.

- 3/4" induction hardened chrome plated shaft resists rock damage, corrosion, and shaft buckling.

- Large shaft diameter provides a wide range of adjustments on adjustable shocks.

- Heavy-duty fabricated steel components utilizing 3/16″ and 1/4″ steel plate

- Full-coverage differential skid plate constructed from 3/16″ steel plate

- Laser cut, CNC formed heavy-duty front/rear drop crossmembers.

- 5"-6" lift allows up to 35x12.50 with a 20?-9" with 0 offset

See Details for Notes on Tow Package Compatibility.

Note:  Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT.  Some GM HD trucks equipped with Tow Package may require custom-length U-bolts purchased separately. Custom U-bolt length may vary by vehicle application.  If the ReadyLIFT kit's standard U-bolts are too short, ReadyLIFT recommends locally sourcing custom U-bolts built to each truck's specifications.

Product Details

ReadyLIFT delivers a performance game changer for the popular 2011-2019 Chevy Silverado and GMC Sierra 2500/3500 HD trucks with the release of our new 5"-6" MAX2.1 Suspension 2.1 Falcon shocks. Designed to improve stance, performance, and capability, this kit includes everything necessary to clear larger wheels and tires. With vehicle-specific performance-tuned Falcon 2.1 dampers on all four corners of our 5"-6" kits, these lift kits provide a better-than-factory feel.  Falcon Performance Shocks improve performance and comfort regardless of the terrain. The versatility of these systems makes them ideal for daily driving, off-road excursions, and tow/haul duties.

The 42-31540 5"-6" MAX2.1 system includes laser-cut, fabricated heavy-duty steel cross-members, new cast iron OE-style knuckles with the perfect geometry built-in, torsion arm brackets, taller cast style rear lift blocks, new forged torsion keys with the proper amount of indexing. These new torsion bar relocation brackets eliminate the traditional lowering of the torsion bars, which can inhibit ground clearance and help to improve the overall driving experience. Additionally, each kit includes crucial differential drop brackets and CV axle spacers, sway bar end links, bump stop extensions, OE style cast rear lift blocks, heavy-duty steel skid plate, and finally, Falcon shocks. 

Features:

- Vehicle-specific performance-tuned Falcon 2.1 monotube dampers on all four corners.

- Improved dynamic roll control and low-speed damping.

- Dramatic improvement in on-road comfort and off-road performance.

- Optimized fitment for unobstructed suspension travel and articulation.

- 6061-T6 aluminum alloy shock body resists Impact to protect internal components.

- Smooth-honed internal shock body surface for long-term performance.

- 3/4" induction hardened chrome plated shaft resists rock damage, corrosion, and shaft buckling.

- Large shaft diameter provides a wide range of adjustments on adjustable shocks.

- Hard anodized 6061-T6 aluminum alloy billet piston.

- 1-piece Teflon bronze piston wear band w/ O-ring.

- Heavy-duty fabricated steel components utilizing 3/16″ and 1/4″ steel plate

- Full-coverage differential skid plate constructed from 3/16″ steel plate

- Laser cut, CNC formed heavy-duty front/rear drop crossmembers.

- 5"-6" lift allows up to 35x12.50 with a 20?-9" with 0 offset 

NOTE: Some SRW (Single Rear Wheel) models may require custom U-Bolts to accommodate the factory tow package. Will not fit DRW (Dual Rear Wheel) applications without custom U-bolts. Towing Capacity will be reduced with the installation of this kit. This kit is primarily designed to only be driven in 2WD at speed on public roads and that 4WD is only to be used off-road or in adverse slow speed conditions due to drive line vibrations at high speeds. A double cardan driveshaft may be required to help eliminate some of the high-speed 4WD front driveline vibrations when kits are 5-8'' high.

Tire Fitment & Clearance

35" Maximum tire diameter

35x12.50 for no rub on a 9" wide wheel with -6 offset

18" - 35X12.5R18

20" - 35X12.5R20

Wheel and tire combinations must be test-fitted. Tire construction, wheel offset and vehicle configuration can affect clearance and ride quality.

Kit Contents

Heavy Duty welded steel crossmembers

Heavy Duty iron knuckles

Cast iron rear lift blocks with integrated bump stop landing pads.

Heavy duty skid plate.

Forged Torsion keys indexed to provide up to 6" of adjustable lift.

Assorted hardware and accessories

Includes 4 Falcon 2.1 Monotube Shocks.

Installation Instructions

• ReadyLIFT installation guide (PDF)

Warranty

ReadyLIFT’s product warranty applies to the original purchaser and covers eligible missing or defective components. Wearable components, including shocks, ball joints, heim joints, bushings and steering extensions, are covered for up to one year. Off-road abuse is excluded; Jeep SST and Terrain Flex lift kits are covered for normal recreational off-road use. Discontinued, clearance and outlet products are excluded. Labour, installation and related fees are not refundable, and consequential vehicle damage is excluded. Coverage is subject to ReadyLIFT’s full terms: ReadyLIFT warranty terms