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How to Install ReadyLIFT 1.5 in. Billet Aluminum Leveling Kit on your Sierra

Installation Time

2 hours

American Muscle
Shop Parts in this Guide

Raise and support front of vehicle frame on jack stands


Remove front wheels/tires


Disconnect ABS/brake bracket from upper control arm.


Disconnect dr/pass sway bar end links


Remove lower strut mounting bolts


Pry up ABS retaining clips from upper strut mounting nuts


Remove upper strut mounting nuts


Remove entire strut assembly from vehicle.


Place strut extension spacer on top of strut

Reinstall strut assembly in vehicle with the new provided hardware on top and the OE fasteners at the lower mount. Reattach the sway bar end links and ABS/brake line bracket. Note: Vehicles installing 66-3085 with the lower strut spacer perform the following steps to complete installation.


Loosen upper ball joint nut and leave attached.


Carefully strike spindle as shown to separate ball joint.


Support suspension and remove upper ball joint nut


Lower suspension slightly and reinstall strut assembly


Use new nuts for upper and OE bolts with lower spacer.


Lift suspension slightly while prying down to attach ball joint.


Tighten upper ball joint to spec.


You may need to hold stud with hex key while tightening


Reattach ABS/brake line bracket and sway bar end links

Reinstall wheels/tires and torque to spec. Recheck all work performed, test drive and have vehicle aligned.


Final Checks & Adjustments

Post Installation Warnings: Once the vehicle is lowered to the ground, check all parts which have rubber or urethane components to insure proper torque. Torque wheels to factory specs. Move vehicle backwards and forwards a short distance to allow suspension components to adjust. Turn the front wheels completely left then right and verify adequate tire, wheel, brake line, and ABS wire clearance. Test and inspect steering, brake and suspension components for tightness and proper operation. Inspect brakes hoses and ABS lines for adequate slack at full extension. Failure to perform the post inspection checks may result in vehicle component damage and/or personal injury or death to driver and/or passengers. Test drive vehicle and re-check the torque of all fasteners and re-torque wheels on vehicle. Readjust headlamps.

Vehicle Handling Warning: Vehicles with larger tires and wheels will handle differently than stock vehicles. Take time to familiarize yourself with the handling of your vehicle.

Wheel Alignment/Headlamp Adjustment:

It is necessary to have a proper and professional wheel alignment performed by a certified alignment technician. Align the vehicle to factory specifications. It is recommended that your vehicle alignment be checked after any off-road driving. In addition to your vehicle alignment, for your safety and others, it is necessary to check and adjust your vehicle headlamps for proper aim and alignment

Vehicle Re-Torque and Safety Inspection:

Upon completion of all services and adjustments performed on your vehicle, and within 50 miles of driving, check to ensure all fasteners and hardware are properly torqued to specification as noted in the vehicles factory service manual or the torque chart included.

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