Tuff Country 14040 - Hummer H3 4 lift kit - Manual (Page 8)

52. Working on the driver side, add some thread locker or
lock tite to the new 3/8” x 1” bolt holding the new driver side
differential kicker support to the new driver side differential
relocation bracket and then torque to 18 ft lbs. Repeat
procedure on the passenger side.
53. Working on the driver side, add some thread locker or
lock tite to the new 14 mm x 40 mm bolt that connects the
new driver side differential relocation bracket to the bottom
side of the stock frame rail and torque to 75 ft lbs. Special
note: when torqueing this bolt, we want to make sure
that the new driver side differential relocation bracket
does not twist. Repeat procedure on the passenger side.
54. Working on the driver side, add some thread locker or
lock tite to the new 9/16” x 3 1/2” bolt that connects the new
driver side differential relocation bracket to the stock front
differential and torque to 85 ft lbs. Special note: when
torqueing this bolt, we want to make sure that the new
driver side differential relocation bracket does not
twist. Repeat procedure on the passenger side
55. Working on the driver side, add some thread locker or
lock tite to the new 5/8” x 4 1/2” bolt that connects the new
front cross member to the stock lower control arm pocket
and torque to 110 ft lbs. Repeat procedure on the
passenger side.
56. Working on the driver side, add some thread locker or
lock tite to the stock hardware holding the stock lower
control arm to the new front cross member and torque to 95
ft lbs. Repeat procedure on the passenger side.
57. Working on the driver side, add some thread locker or
lock tite to the (2) stock bolts holding the new rear cross
member to the stock location and torque to 65 ft lbs.
Repeat procedure on the passenger side.
58. Locate the new front skid plate. Also, locate (6) 1/2” x 1
1/2” bolts, (12) 7/16” USS flat washers and (6) 1/2”
unitorque nuts from hardware bag 14040NB. Install the
new skid plate to the front and rear cross member using the
new 1/2” x 1 1/2” bolts and hardware. Do not tighten at
this point.
Photo # 36 / front location
Photo # 37 / rear location
59. Add some thread locker or lock tite to the (3) 1/2” x 1
1/2” bolts holding the new skid plate to the newly installed
front cross member and torque to 65 ft lbs. Add some
thread locker of lock tite to the (3) 1/2” x 1 1/2” bolts
holding the new skid plate to the newly installed rear cross
member and torque to 65 ft lbs.
60. Locate the new front shocks. Special note: New
longer front 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 20” fully extended
hydraulic shock. Locate (4) PB8297 upper shock
bushings and (4) S10107 upper shock washers from
hardware bag 14045PL. Install the new shock boot onto the
new shocks. 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. Working on the driver side, install the new shock
into the stock lower using the stock hardware that was
removed in step # 7. Make sure to use thread locker or lock
tite and torque to 65 ft lbs. Install the new shock into the
stock upper location using the new upper shock bushings,
over size washers and the new nut that was packaged with
the new shocks. Torque to 18 ft lbs. Repeat procedure on
the passenger side.
61. Working on the driver side, tighten the torsion bar
adjusting bolt until there is 2 3/16” of thread sticking out of
the torsion bar adjusting block. Repeat procedure on the
passenger side.
Photo # 38
62. Check and double check to make sure that all steps for
the front end were performed properly and then check
again.
63. Install the tires and wheels and carefully lower the
vehicle to the ground.
This box kit includes the front end only. Tuff Country
offers 2 options for the rear end. A new rear leaf pack
or a new rear add-a-leaf. The rear end parts are sold
separately and must be ordered separately from the
front box kit. If you have not already ordered the option
for the rear end, please contact Tuff Country or your
local Tuff Country dealer and order (2) 19400 for the
rear spring option or (1) 81350 for the add-a-leaf
option. This instruction sheet will talk about the
installation of both options.
If you are installing the new rear leaf spring option on
the vehicle that you are working on, please follow
steps # 64 — 86.
If you are installing the new rear add-a-leaf option on
the vehicle that you are working on, please follow
steps # 87 — 107.
64. To begin installation, block the front tires of the vehicle
so that the vehicle is stable and can’t roll forward. Safely lift
the rear of the vehicle and support the frame with a pair of
jack stands. Place a jack stand on both the driver and
passenger side. Next, remove the wheels and tires from
both sides.
65. Working on the driver side, remove the stock shock
from the stock upper and lower mounting points and save
the stock hardware for later re-installation. The stock
shocks may be discarded. Special note: New longer rear