How to Install SuperLift 1.5 in. Front Strut Spacer Leveling Kit (07-18 Silverado 1500) on your Chevy Silverado

Installation requires a professional mechanic. Prior to beginning, inspect the vehicles steering, driveline, and brake systems, paying close attention to the control arms and bushings, anti-sway bars and bushings, steering linkage, ball joints and wheel bearings. Also check the steering sector-to-frame and all suspension-to-frame attaching points for stress cracks. The overall vehicle must be in excellent working condition; repair or replace all worn parts. 

Read instructions several times before starting. Be sure you have all needed parts and know where they install. Read each step completely as you go. 

NOTES:

• Prior to beginning the installation, check all parts and hardware in the box with the parts list below. If you find a packaging error, contact Superlift® directly. Do not contact the dealer where the system was originally purchased. You will need the control number from each box when calling; this number is located at the bottom of the part number label and to the right of the bar code.

• Front end realignment is necessary.

• A foot-pound torque reading is given in parenthesis ( ) after each appropriate fastener.

• Do not install any additional components or modify this system to gain additional suspension height.

• Prior to attaching components, be sure all mating surfaces are free of grit, grease, undercoating, etc.

• Speedometer recalibration will be recommended if a taller tire is used.

• A factory service manual should be on hand for reference.

• Use the check-off box “” found at each step to help you keep your place. Two “” denotes that one check-off box is for the driver side and one is for the passenger side.

PARTS LIST … The part number is stamped into each part or printed on an adhesive label. Identify each part and place the appropriate mounting hardware with it. 

NOTE: Save all factory components and hardware for reuse.

1)  PREPARE VEHICLE... Place vehicle in neutral. Raise front of vehicle with a jack and  secure a jack stand beneath each frame rail, behind the lower control arms. Ease the frame down  onto the stands, place transmission in low gear or “park”, and chock rear tires. Remove front tires. 

2) STRUT REMOVAL… Steps 2 and 3 are performed one side at a time.

IMPORTANT: Eccentric cam bolts connect the upper control arm-to-frame, and are also used for  front end alignment. In later steps the eccentrics must be restored to their pre-lift position for  alignment to be “in the ball park” prior to final alignment. Prior to loosening, scribe a line on each  eccentric washer, and the flanges they contact, for later reference. 

 Loosen, do not remove, all four control arm- to-frame bolts (both upper and lower control  arms). Rotate the uppercam bolts so the upper  control arm is as far to the outside of the vehicle  as possible. This will aid in removing the strut. 

 Mark the location of each strut assembly  (driver and passenger side), as well as the  outermost stud of each strut, for reference during  reassembly. 

 Remove the two bolts securing the strut-to- lower control arm, followed by the three nuts  securing the strut-to-frame. Remove the strut  assembly. 

3) STRUT SPACER INSTALLATION… 

 [SEE DIAGRAM] Position spacer #66-01-  30100 as shown. 

 Secure upper end of the strut assembly-to- frame using the supplied 10mm flange nuts. Do  not tighten at this time. 

 Attach lower end of the strut assembly-to- control arm using the factory hardware. Tighten  both upper and lower ends of strut assembly (37). 

Perform steps 2 and 3 on opposite side. 

4)  TIRES / WHEELS... [SEE DIAGRAM - TORQUE SEQUENCE] Tighten lug nuts (140) in  the sequence shown. 

WARNING: When the tires / wheels are installed, always check for and remove any corrosion, dirt, or foreign material on the wheel mounting surface, or anything  that contacts the wheel mounting surface (hub, rotor, etc.).  Installing wheels without the proper metal-to-metal contact at the  wheel mounting surfaces can cause the lug nuts to loosen and the  wheel to come off while the vehicle is in motion. 

WARNING: Retighten lug nuts at 500 miles after any wheel  change, or anytime the lug nuts are loosened. Failure to do so  could cause wheels to come off while vehicle is in motion. 

5)  INITIAL CLEARANCE CHECK... With the vehicles  frame rails still on jack stands, and the suspension “hanging” at full  extension travel, cycle steering lock-to-lock and check all  components for proper operation and clearances. Pay special  attention to the clearance between the tires / wheels and brake  hoses, wiring, etc. 

6) CONTROL ARMS…   Lower vehicle to the floor. The suspension is now supporting vehicle weight. Prior to  tightening the upper control arm eccentric cam bolts, align the scribe marks made in step 2 (140). 

 Tighten lower control arm bolts (129).

7)  FINAL CLEARANCE and TORQUE CHECK… With vehicle on floor, cycle steering  lock-to-lock and inspect the tires / wheels, and the steering, suspension, and brake systems for  proper operation, tightness, and adequate clearance. 

8)  HEADLIGHTS... Readjust headlights to proper setting.

9)  SUPERLIFT® WARNING DECAL… Install the WARNING TO DRIVER decal on the inside of the windshield, or on the dash, within driver’s view. Review the “IMPORTANT PRODUCT USE AND SAFETY INFORMATION / WARNINGS” text found at the end of this instruction sheet. 

10)  ALIGNMENT... Realign vehicle to factory specifications.