How to Install ICON Vehicle Dynamics Tubular Uniball Upper Control Arms (07-17 Silverado 1500) on your Chevy Silverado

(1) 174600 07 GM 1500 UCA (DRVR)

(1) 174601 07 GM 1500 UCA (PASS)

(2) 177200 07 GM 1500 UCA TAPERED PIN

(2) 157506 BEARING CAP, .500 ID

(2) 605337 1/2-20 X .875 12PT

(2) 295550 COMH16T STAINLESS BEARING F1 FIT

(2) 605838 M12-1.75 FLANGED LOCK NUT

(1) 605969 VIBRATITE RED 2ML BULLET

(2) 605950 WHT-200 SPIRAL RET RING

(4) 605903 1/4-28 X 90 DEG STEEL ZERK FITTING

(8) 297034 HAT BUSHING 1.625 X 1.000 X .850

(4) 179107 SLEEVE 1.000 X .563 X 1.766

(2) 605052 1/4-20 LOCK NUT

(2) 605053 1/4 FLAT WASHER

(8) 150025 WASHER 2.125 X .565 X .188

1. ICON RECOMMENDS OPTIONAL BILLET UNIBALL DUST COVER SET (191011) TO PREVENT DEBRIS FROM ENTERING THE UNIBALL CUP. 

2. ALL ICON UPPER CONTROL ARMS HAVE BEEN ENGINEERED TO ALLOW FOR THE MOST POSSIBLE CASTER, WHILE STILL ALLOWING THE VEHICLE TO BE PROPERLY ALIGNED. NOTIFY YOUR  PROFESSIONAL ALIGNMENT SHOP OF THIS INFORMATION SO THAT MAXIMUM RIDE QUALITY CAN BE ACHIEVED. 

3. IF YOUR VEHICLE IS EQUIPPED WITH ALUMINUM SUSPENSION, STOP AND RETURN KIT FOR (78601).     

** READ ALL INSTRUCTIONS THOROUGHLY FROM START TO FINISH BEFORE BEGINNING INSTALLATION! IF THESE INSTRUCTIONS ARE NOT PROPERLY FOLLOWED SEVERE FRAME, SUSPENSION AND TIRE DAMAGE MAY RESULT TO THE VEHICLE! 

** ICON VEHICLE DYNAMICS RECOMMENDS THAT YOU EXERCISE EXTREME CAUTION WHEN WORKING UNDER A VEHICLE THAT IS SUPPORTED WITH JACK STANDS. 

**ICON VEHICLE DYNAMICS RECOMMENDS ALL INSTALLATION TO BE PERFORMED BY A PROFESSIONAL SHOP/SERVICE TECHNICIAN. PRODUCT FAILURE CAUSED BY IMPROPER INSTALLATION WILL NOT BE COVERED UNDER ICON’S WARRANTY POLICY.     

1. Using a properly rated jack, raise the front of the vehicle and support the frame rails with jack stands. Ensure the jack stands are secure and set properly before lowering the jack. NEVER WORK UNDER AN UNSUPPORTED VEHICLE. Remove the front wheels.

2. Using a jack, slightly lift the lower control arm to prevent the suspension from being at full droop.

3. Turning the steering wheel to the driver side will allow easy access to the nut on the upper control arm ball joint that connects the spindle and upper control arm. Remove the safety cotter pin and loosen the ball joint nut using an 18mm socket/wrench.

4. Support the spindle so that it does not over extend the CV joints when detached.  

5. With the upper control arm disconnected from the spindle, loosen the upper control arm from its mounts on the frame using a 21mm wrench/socket. Remove OEM upper control arm.

6. Before installing your new upper control arms, care must be taken to grease the bushings (liberally) prior to installing assembly. Fail­ure to grease properly will cause premature bushing wear and increased noise. [FIGURE 1]

7. Install the tapered pin adapter. Carefully loosen components and slide the pin into the uniball pivot. Insert the dome cap and 1/2” 12pt bolt and hand tightening the tapered pin assembly. The 1/2” 12pt bolt will be removed later to apply RED thread locker.

8. Each arm is clearly labeled which side and direction it should be installed.

9. With greased bushings installed, place the driver side upper control arm into the arm mounts on the chassis and hand tighten OEM hardware.  

10. Install the taper pin adapter up into the uniball, install the upper dome on top and install the 1/2” 12pt bolt in the top. Make sure the radius of the taper adapter and upper dome meet the diameter of the inner ball of the uniball. Hand tighten the upper bolt for now. It will be torqued with thread locker later.  

11. Pivot the uniball stem assembly so that the stem is inline with the taper bore in the spindle. The new uniball will be very stiff the first time you move it.  

12. Rotate the upper control arm downward and install the stem through the spindle taper. Use an 18mm socket/wrench to install the supplied washer and nut on the taper pin. As you begin to tighten the stem nut the stem may want to spin. If so you can keep it from spinning by holding the upper 12pt bolt. Once the taper has seated, friction will keep it from spinning. [Torque to factory spec]  

13. Tighten the upper control arm mounts on the chassis using a 21mm socket/wrench. [Torque to factory spec]  

14. Install wheels and lower vehicle to the ground. [Torque to factory spec]  

15. Remove the 12pt 1/2” bolt that holds the taper dome on the top of the uniball from step 11. Apply RED thread locker and reinstall. [Torque to 90 ft-lbs]  

16. Repeat steps on opposite side.  

17. Have the vehicle professionally aligned. 

VERIFY ALL FASTENERS ARE PROPERLY TORQUED BEFORE DRIVING VEHICLE.

RETORQUE ALL NUTS, BOLTS AND LUGS AFTER 100 MILES AND PERIODICALLY THEREAFTER.