Owners manual

12
51947/51947MX
Revised
7.31.08
into the new Pro Comp steering knuckle (90-4156
Drvr and 90-4157 Pass). Make sure that the ABS
wiring is oriented in exactly the same position as it
came from the OE knuckle and out of the way of
the tire.
44. Torque the bearing to the knuckle with the OE
bolts. Torque to 133 ft./lbs. Repeat on the other
side.
45. Install the lower A-arms into the crossmember
mounting pockets. Secure using the supplied 5/8”
X 4 1/2” bolts and hardware in the front pocket
and the supplied 5/8” X 5 1/2” bolts and hardware
in the rear pocket.
46. Install the new knuckle to the lower ball joint.
Torque the lower ball joint nut 74 ft./lbs.
47. Slip the CV axle through the bearing hub in the
knuckle from the inside.
48. Secure the CV axle and the CV spacer (90-4077)
to the differential using the supplied 10mm X
60mm bolts and washers. See ILLUSTRATION
11.
49. Install the new knuckle to the upper ball joint.
Start the nut and leave hand tight until Coil over
installation is complete.
50. Reinstall the CV shaft washer and retaining nut to
CV axle. Torque this nut to factory specifications.
(See your GM service manual for details)
51. WITH THE COIL OVERS,
insert the mono ball
spacers (90-2433) from pack (90-6492) in the top
of the coil over as shown in ILLUSTRATION 12.
NOTE: The spacers are a tight fit. A press
might be needed to fit the spacers into the mono
Illustration 8
Front Differential Mount Tab
Install
9/16” X 4”
Bolt
5/16”
X 1”
Bolt
90-3691
Front Diff
Mount Tab
90-3691
Front Diff
Mount Tab
5/16”
X 1”
Bolt
9/16” X 4”
Bolt
Finished View
5/16”
X 1”
Bolt
Mount to Lower Holes
In Front Crossmember
Mount Tabs