Suspension and Components› Suspension Kits
Kryptonite
KRYPTONITE STAGE 3 LEVELING KIT WITH FOX SHOCKS 1 2 TON 6 LUG 2007-2018 (KRUCA12)
SKU: K03Q KR12STAGE3FOX
Advanced — 4+ hours
Description
The suspension package includes upgraded boxed steel upper control arms designed to improve geometry and durability. It is compatible with 2007–2018 GMC Sierra 1500 models, supporting both 2WD and 4WD configurations.
Installation requires that the vehicle be equipped with factory cast steel upper control arms. Vehicles equipped with MagneRide suspension require custom fabrication for installation. It is recommended to verify wheel clearance, as OE wheels may not clear the new components.
This stage 3 kit offers a complete performance upgrade, balancing increased ride height with off-road capability. It allows for the fitment of up to 33-inch tires. Professional installation is recommended to ensure proper alignment and suspension geometry.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Kryptonite |
| Part Number | K03Q KR12STAGE3FOX |
Videos
Diesel Talk | KRYPTONITE STAGE 3 LEVELING KIT WITH FOX 2.0 SHOCKS 20-22 GM 2500HD / 3500
Kryptonite Leveling Kit Install on 2500HD
2021 DURAMAX LEVELED WITH KRYPTONITE STAGE 3 KIT! (2001-2021)
Kryptonite Level Kit Stage 3 : 2014 Chevrolet Silverado 2500HD
The Ultimate 2024 Duramax Upgrade: Kryptonite Leveling Kit Installed
Duramax Silverado Suspension Upgrade | Fox 2.5 Shocks Kryptonite Leveling Kit
What You Need To Know About LEVELING KITS on Duramax Trucks! (2500 - 3500 HD)
You Need This Kryptonite Leveling Kit For Your 01-10 GMC!
INSTALLING KRYPTONITE STAGE 3 LEVELING KIT! (2001-2010 CHEVY/GMC)
Duramax Leveling Secrets No One Tells You to fit 35s!
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy