ReadyLift® Torsion Key Leveling System is the fastest, safest, least expensive way to bring the front of your Chevrolet CK Z71 1500 4WD level with the rear. The adjustable 66-3000 torsion key provides 1.5” of leveling lift on the 1988-98 GM CK 4WD trucks. This gives you the clearance and ability to add wheels and tires up to 32" in diameter. While other lift kits cost thousands to buy and hours to install, ReadyLift® can be installed in about 1-2 hours by a certified mechanic, and costs less than the price of a single custom wheel. ReadyLift® products do not affect the factory OEM ride quality or comfort. ReadyLift® is also the only company that forges torsion keys for ultimate strength. Thats why ReadyLift™ also offers a lifetime warranty for as long as you own your vehicle against defects for all of our products.
LEARN MORE ABOUT HOW TORSION KEYS WORK
LEARN MORE: FORGED READYLIFT KEYS vs. CHEAP CAST KEYS
For information about tire and wheel sizes please visit the ReadyLift Tire Sizing and Calculator Page
ReadyLift® Features
Keeps your factory ride - Guaranteed
Will never wear, break or fail - Guaranteed
Toughest finish – Guaranteed
Safest way to level lift - Guaranteed
Notes:
- 66-3000 - Custom torsion key adjusting bolts are included that prevent the installer from over-cranking the torsion key, which affects ride. The kit may be dialed up with the stock adjusting bolts, but which may also affect ride quality

ReadyLift Torsion Key Unloading Tool
If you plan on installing the ReadyLift® Leveling Torsion Key then you will need a torsion key unloading tool to get the job done safely and effectively. Torsion keys possess the entire force of the torsion bars and even in a full droop position, the keys are still under a load. Torsion Key Unloading Tools are the ONLY safe method for removing and installing torsion keys. ReadyLift® offers the only Forged Torsion Key Unloading Tool. This tool is HIGHLY RECOMMENDED if you plan to do the installation yourself.
