Zone Offroad torsion bar key leveling kits are made in the USA and are 100% resonant frequency tested to ensure a solid casting. Once tested the torsion bar keys are CNC machined to achieve a consistent 2" of lift with the adjustment bolts in the factory location. Shock relocation brackets or longer shocks are required and are listed in the recommend accessories.
This kit fits 2500 & 3500 HD models.
100% resonant frequency tested.
Levels out your truck.
Front shock relocation brackets or longer shocks available.
Optional Rear shocks available.
Front shocks relocation brackets or new front shocks are recommended with the installation or torsion bar keys to allow the suspension to properly travel
To determine whether a C1202 or C1203 kit is required, verify which RPO codes are shown in the glove box to determine the factory installed torsion keys. Any of the following RPO codes require the C1202 kit: FT2 - FT3 - FT4 - FT5 - FT6 - FT7 Any of the following RPO codes require the C1203 kit: FK2 - FK3 - FF6 - FF7 - FF8 - FF9