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Readylift Suspension

ReadyLift Suspension Big Lift Kits for 2025 SIERRA 1500, SILVERADO 1500 - 44-35615 Lift, Lift, 6 in. Lift, Steering Knuckles, Blocks, Chevy, GMC, Kit

SKU: RLS44-35615

Suspension Leveling & Lift Kits
ReadyLift Suspension Big Lift Kits for 2025 SIERRA 1500, SILVERADO 1500 - 44-35615 Lift, Lift, 6 in. Lift, Steering Knuckles, Blocks, Chevy, GMC, Kit

Readylift Suspension

ReadyLift Suspension Big Lift Kits for 2025 SIERRA 1500, SILVERADO 1500 - 44-35615 Lift, Lift, 6 in. Lift, Steering Knuckles, Blocks, Chevy, GMC, Kit

SKU: RLS44-35615

Suspension Leveling & Lift Kits
A$7,311.10
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Forget squeaks, rattles, and vibrations—the ReadyLift big lift kits ensure superior performance with smooth rides over all terrain. These leveling and big lift kits feature heavy-duty angled and offset top mount strut extensions that realign the struts to optimize shock performance and minimize wear. A specially designed lower mount strut pre-load spacer offers the added benefit of a slight increase in spring rate to better manage unsprung mass resulting from the larger wheels and tires on your newly lifted truck. To lift the rear, new fabricated steel rear blocks with integrated bump stop landings are added, as well as new rear shock extensions to retain the factory performance shocks. With ReadyLift, you don't just get a lift kit, you get peace of mind that your vehicle will excite and delight your senses! Choose the big lift kit for your application needs.

Key features and benefits:

* Heavy-duty, laser cut tabbed and slotted steel construction
* 3/16 in. thick steel plate cross members and skid plate
* Anti-torsion boxed and gusseted plate steel differential drop brackets
* Delivers clearance for increased aftermarket tire sizes—provides an impressive lift, allowing for greater clearance and enhanced off-roading capabilities
* Cast iron knuckles have been engineered to provide ideal geometry for a great ride and handling
* Unique brackets for proper relocation and angle of the front differential

Part Type

Suspension Leveling & Lift Kits

Data: v4.2 - Upd: 2026-09-29 18:24:02

Specifications

Product Attributes - Brand
ReadyLift Suspension
Product Attributes - Manufacturer's Part Number
44-35615
Product Attributes - Part Type
Suspension Leveling & Lift Kits
Product Attributes - Product Line
ReadyLift Suspension Big Lift Kits
Product Attributes - UPC
194933406142
Product Attributes - Lift Style
Suspension Lift Kit
Product Attributes - Primary Front Lift Component
Steering knuckle
Product Attributes - Primary Rear Lift Component
Leaf spring block
Product Attributes - Front Shocks/Struts Included
No
Product Attributes - Rear Shocks/Struts Included
No
Product Attributes - Brake Lines Included
No
Product Attributes - Hardware Included
Yes
Product Attributes - FMVSS 126 Certification
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Designed for models with ARC system. Not compatible with rear mono-leaf springs.

Reference Information

Brand Name/s Readylift Suspension
StreetFX SKU rls44-35615
SFX Item ID 5009188
Supplier Item Code 5009188
Manufacturer SKU 44-35615
Manufacturer UPC 194933406142

Compatibility

Application Data
  • MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelHIGH COUNTRY
    Beginning Year2025
    Ending Year2025
    Engine TypeL6
    Engine Size3.0L/183
    Engine FamilyGM DURAMAX L6 DIESEL
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelHIGH COUNTRY
    Beginning Year2025
    Ending Year2025
    Engine TypeV8
    Engine Size5.3L/325
    Engine FamilyCHEVY SMALL BLOCK GEN V V8 GAS
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeCHEVROLET
    ModelSILVERADO 1500
    SubmodelHIGH COUNTRY
    Beginning Year2025
    Ending Year2025
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyCHEVY SMALL BLOCK GEN V V8 GAS
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeGMC
    ModelSIERRA 1500
    SubmodelDENALI
    Beginning Year2025
    Ending Year2025
    Engine TypeL6
    Engine Size3.0L/183
    Engine FamilyGM DURAMAX L6 DIESEL
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeGMC
    ModelSIERRA 1500
    SubmodelDENALI
    Beginning Year2025
    Ending Year2025
    Engine TypeV8
    Engine Size5.3L/325
    Engine FamilyCHEVY SMALL BLOCK GEN V V8 GAS
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeGMC
    ModelSIERRA 1500
    SubmodelDENALI
    Beginning Year2025
    Ending Year2025
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyCHEVY SMALL BLOCK GEN V V8 GAS
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeGMC
    ModelSIERRA 1500
    SubmodelDENALI ULTIMATE
    Beginning Year2025
    Ending Year2025
    Engine TypeL6
    Engine Size3.0L/183
    Engine FamilyGM DURAMAX L6 DIESEL
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.
  • MakeGMC
    ModelSIERRA 1500
    SubmodelDENALI ULTIMATE
    Beginning Year2025
    Ending Year2025
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyCHEVY SMALL BLOCK GEN V V8 GAS
    Drivetrain4WD
    Amount of Lift Front6.000 in.
    Amount of Lift Rear6.000 in.
    Front SuspensionIndependent front suspension
    Number of Lugs6
    Maximum Tire Height (in.)35 in.
    Maximum Tire Width (in.)(application)12.5 in.
    Application NotesNot compatible with rear mono-leaf springs.

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