Tuff Country 14045 - GM Colorado / Canyon 4 lift kit - Manual (Page 10)

hardware for later re-installation. Set the stock lower u-bolt
plate aside for later re-installation. Repeat procedure on
passenger side.
82. Carefully raise up on both hydraulic floor jacks until the
stock spring assemblies separate from the stock rear axle.
83. Locate (2) new rear add-a-leaf. Also, locate (2) 5/16” x
6” centering bolts and (2) 5/16” fine nuts from hardware bag
14045NB1. 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 5/16” center bolt and
nut. Torque to 22 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. 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.
84. Carefully lower down on both hydraulic floor jacks at the
same time until the stock rear axle seats properly with the
newly modified stock rear springs.
85. Locate the stock lower u-bolt plates, the stock u-bolts
and the stock u-bolt hardware that were removed in step #
81. Working on the driver side, install the stock u-bolts into
the stock location and secure using the stock hardware.
Repeat procedure on the passenger side. Torque the stock
u-bolts to 70 ft lbs.
86. 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. Also, locate (2) P98 shock clevis mounts
from hardware bag 14045NB1. 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 lower
shock bushings. Install the new shock boots 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, damage
may occur to the piston of the new shock. Next, install
the new P98 shock clevis mounts into the upper eyelet’s of
each shock. Special note: Make sure to use a lithium or
moly base grease prior to inserting the new shock
bushings, sleeves and clevis mounts 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 # 78. Special note: Make sure to use
thread locker or lock tite and torque the upper
mounting hardware to 28 ft lbs and the lower stock
mounting hardware to 75 ft lbs. Repeat procedure on
the passenger side.
87. Locate the stock emergency brake cable mounting
hardware that was removed in step # 80. Working on the
driver side, install the stock emergency brake cable to the
stock bracket and secure using the stock hardware. Make
sure to use thread locker or lock tite and torque to 18 ft lbs.
88. Remove both hydraulic floor jacks from under the
vehicle.
89. Install the tires and wheels and carefully lower the
vehicle to the ground.
90. Check and double check to make sure that all steps
were performed properly for the rear end and check again.
Congratulations, installation complete!
Special note: After the completion of the installation,
Tuff Country EZ-Ride Suspension recommends taking
the vehicle to an alignment shop and having a proper
front end alignment performed.
Tuff Country EZ-Ride Suspension recommends that a
complete re-torque is done on all bolts associated with
this suspension system. It is the customers
responsibility to make sure that a re-torque is
performed on all hardware associated with this
suspension system after the first 100 miles of
installation. It is also the customers responsibility to
do a complete re-torque after every 3000 miles or after
every off road use. Neglect of following these steps
could cause brackets to come loose and cause serious
damage to the suspension system and to the vehicle.
Tuff Country EZ-Ride Suspension packages (2) sets of
instruction sheets with this box kit. (1) is for the
installer and (1) is for the customer. The (1) for the
customer has some post installation procedure
literature and it is the installers responsibility to make
sure that the customer receives a copy of the
installation manual along with the literature.
If you have any questions or concerns, please feel free
to contact Tuff Country or your local Tuff Country
dealer.