Tuff Country 16955 - GM 99-05 Silverado K1500 6 kit - Manual (Page 12)

42. Locate the new sub frame and the stock lower control
arm mounting hardware. Install the sub frame into the stock
front and rear lower control arm pockets on the driver and
passenger side using the stock hardware. Do not tighten
at this point.
43. Place a hydraulic floor jack on the driver side of the
front differential and carefully raise up until it makes contact
with the front differential. Remove the bungee cord or tie
down strap that is holding the driver side of the front differ-
ential.
44. Carefully lower down on the hydraulic floor jack holding
the driver side of the stock front differential until the front
differential seats properly into the rear portion of the sub
frame and the newly installed driver side differential reloca-
tion bracket can be installed to the front portion of the sub
frame.
45. Locate the stock driver side front differential mounting
hardware. Secure the newly installed front differential relo-
cation bracket to the front portion of the sub frame. Secure
using the stock hardware. Do not tighten at this point.
46. Locate the stock driver side rear differential mounting
hardware. Install the rear portion of the front differential into
the tab on the newly installed sub frame. Secure using the
stock hardware. Do not tighten at this point.
47. Carefully remove the hydraulic floor jack that is holding
the driver side of the stock front differential.
48. Locate (2) 5/8” x 4 1/2” bolts, (2) 5/8” x 5 1/2” bolts, (8)
9/16” USS flat washers and (4) 5/8” unitorque nuts from
hardware bag 16955NB5. Also, locate the stock lower
control arms. Working on the driver side, install the stock
lower control arm into the newly installed front portion of the
of the sub frame and secure using the new 5/8” x 4 1/2” bolt
and hardware. Do not tighten at this point. Install the
stock lower control arm into the newly installed rear portion
of the sub frame and secure using the new 5/8” x 5 1/2” bolt
and hardware. Do not tighten at this point. Repeat pro-
cedure on the passenger side.
49. Using a hydraulic floor jack, carefully raise up on the
front portion on the newly installed sub frame until the front
portion of the newly installed sub frame sits flush with the
stock front cross member.
50. Locate (2) stock upper skid plate lower bolts. Working
on the driver side, secure the front portion of the newly
installed sub frame to the stock front cross member using
the stock hardware. Torque to 38 ft lbs. Special note:
Make sure to use thread locker or lock tite. Repeat pro-
cedure on the passenger side. Carefully remove the
hydraulic floor jack from under the front portion of the newly
installed sub frame.
51. Move back to the stock and new hardware that is
attaching the new passenger side differential relocation
bracket to the stock location and the stock differential and
add some thread locker or lock tite and torque the stock
hardware to 75 ft lbs. and the new 9/16” hardware to 85 ft