Tuff Country 14040 - Hummer H3 4 lift kit - Manual (Page 11)

differential and carefully raise up on both hydraulic floor
jacks at the same time until they come into contact with the
rear differential.
90. Remove the stock brake line bracket from the upper
portion of the stock brake line bracket and save the stock
hardware for later re-installation. Special note: make sure
to remove the hardware that attaches the stock brake
line bracket to the upper portion and not the bolt that
connects the stock brake line bracket to the rear
differential cover.
91. Working on the driver side, remove the stock ABS line
from the stock ABS line bracket located on the stock rear
axle. Repeat procedure on the passenger side.
Photo # 39
92. Working on the driver side, remove the stock sway bar
end link from the stock sway end link upper and lower
location. The stock sway bar end link and the stock
hardware may be discarded. Repeat procedure on the
passenger side.
93. Working on the driver side, remove the stock u-bolts
from the stock location and discard the stock u-bolts and
hardware. Set the stock lower u-bolt plate aside for later
re-installation. Repeat procedure on passenger side.
94. Carefully raise up on both hydraulic floor jacks until the
stock spring assemblies separate from the stock rear axle.
95. Working on the driver side, open the stock spring
clamps that wrap around the stock springs. Special note:
a big pair of channel locks makes for opening up the
stock clamps easier. Repeat procedure on the passenger
side.
96. Locate (2) new rear add-a-leaf, (2) 3/8” x 6” centering
bolt and (2) 3/8” fine nut from box kit 81350. Install the new
rear add-a-leaf into the stock spring assembly. Secure the
new rear add-a-leaf to the stock spring assembly using the
new 3/8” center bolt and nut. Torque to 28 ft. lbs. Special
note: If the new add-a-leaf that you are installing into
the stock spring assembly has an offset center hole
location, place the longest side of the add-a-leaf
towards the rear of the vehicle. Also the new add-a-leaf
should be installed into the stock spring assembly in
progression in order, from longest to shortest. The
new add-a-leaf should be installed between the 2nd
and 3rd leaf in the stock spring pack. Also, Tuff
Country EZ-Ride Suspension recommends not using
any air tools when installing the new add-a-leafs into
the stock spring assembly. If air tools are used the
centering bolt may strip, causing the stock spring
assembly to come apart. With a suitable cutting tool, cut
off the extra thread from the new centering bolt. Repeat
procedure on passenger side.
Photo # 42
97. Working on the driver side, bend the stock spring
clamps around the stock spring and the newly installed rear
add-a-leaf. Special note: the use of a hammer may
make bending the stock clamps easier.
Photo # 43
98. Carefully lower down on both hydraulic floor jacks at the
same time until the stock rear axle seats properly with the
newly installed rear springs.
99. Locate (4) new 1/2” x 3 1/2” x 8” round u-bolts. Locate
(8) 1/2” u-bolt high nuts and (8) 1/2” u-bolt harden washers
from hardware bag 12NW. Also, locate the lower u-bolt
plates that were removed in step # 93. Working on the
driver side, install the new u-bolts into the stock location
and secure using the new 1/2” hardware. Repeat
procedure on the passenger side. Torque the new u-bolts
to 70 ft lbs.
100. Locate the new rear shocks. Special note: New
longer rear shocks are needed, if you have not already
ordered shocks, please contact Tuff Country or your
local Tuff Country dealer and order the proper shocks.
Tuff Country recommends using a 26” fully extended
hydraulic shock. Working on the new shocks, install the
new shock bushing into the upper and lower eyelets of the
new shocks. Next, install the new proper shock sleeves into
the previously installed shock bushings. Special note:
Make sure to use a lithium or moly base grease prior to
inserting the new shock bushings and sleeves into the
new shock eyelets. This will increase the life of the
bushing as well as prevent squeaking. Working on the
driver side, install the new shock into the stock upper and
lower location and secure using the stock hardware that
was removed in step # 88. Special note: Make sure to
use thread locker or lock tite and torque the upper and
lower stock mounting hardware to 75 ft lbs. Repeat
procedure on the passenger side. Special note: Tuff
Country EZ-Ride Suspension highly recommends that
the shocks are installed with shock boots. If shock
boots are not installed, damaged my occur to the
piston of the new shock.
101. Locate the new rear brake line relocation bracket from
hardware bag 14040PL. Also, locate the stock brake line
bracket hardware that was removed in step # 90. Install the
new rear brake line bracket to the upper portion of the stock
brake line bracket and secure using the stock hardware. Do
not tighten at this point.
102. Locate (1) new 5/16” x 1” bolt, (2) 1/4” USS flat
washers and (1) 5/16” unitorque nut from hardware bag
14040NB. Install the stock brake line bracket to the newly
installed rear brake line relocation bracket and secure
using the new 5/16” x 1” bolt and hardware. Make sure to
use thread locker or lock tite and torque to 12 ft lbs. Move
back to the stock hardware that was installed in step # 101
and add some thread locker or lock tite and torque to 12 ft
lbs.
Photo # 40