Tuff Country 16085 - GM 2011 Silverado 2500HD 6 box kit - Manual (Page 16)

60. Locate the new driver side steering knuckle. Install the
rubber “O” ring into the new steering knuckle. Secure the
hub assembly to the new knuckle using the stock hardware.
Make sure to use loctite and torque to 100 ft lbs. Make sure
that the dust shield is re-installed. Repeat procedure on the
passenger side knuckle.
61. Working on the driver side, install the new knuckle to the
lower control arm and secure using the stock hardware.
Make sure to use loctite and torque to 45 ft lbs.
62. Locate the driver side axle and install it back into the hub
assembly. Now, locate the new driver side CV axle spacer.
Also, locate (8) 10 mm x 80 mm bolt from hardware bag
16085NB3. Working on the driver side, install the new CV
axle spacer between the front differential and the CV axle.
Secure using the new 10 mm x 80 mm bolts. Make sure to
use loctite and torque to 65 ft. lbs. Special note: It is high-
ly recommended not to use air tools when performing
this step.
63. Install the upper control arm to the previously installed
knuckle and secure using the stock hardware. Make sure to
use loctite and torque to 37 ft lbs.