Tuff Country 14810 - GM 88-98 K1500 / K2500 6lug 4 - Manual (Page 10)

77. Lower down on both hydraulic floor jacks at the same
time until the stock springs separate from the stock rear
axle and leave enough room for the new rear block to be
installed. Special Note: Make sure not to over
extended any brake lines or hoses when lowering
axle.
78. Locate (2) new 4” lifted rear blocks. Working on the
driver side, install (1) new 4” lifted block between the
stock rear axle and the stock spring assembly. Special
Note: The new 4” lifted block has a slight taper to it,
the small end of the new block needs to be installed
with the small end towards the front of the vehicle.
Repeat procedure on passenger side.
See Illustration # 24
79. Raise up on both hydraulic floor jacks at the same
time until the driver and passenger side stock spring
assembly seats flush with newly installed 4” block.
80. Locate (4) new 9/16” x 2 3/4” x 12 5/8” Square U-
bolts. Locate (8) 9/16” U-bolt high nuts, (8) 9/16” U-bolt
washers from hardware bag 916NW. Also, locate the
stock upper and lower U-bolt plates that were removed
from step # 76. Working on the driver side, install (2) new
9/16” x 2 3/4” x 12 5/8” square U-bolts into the stock
location and secure using the new 9/16” high nuts and
washers. Torque to 120 ft lbs. Special Note: When
torqueing down the new rear U-bolts, torque the front
outer leg first, then the rear inner leg second, the
front inner leg next and the rear outer leg last. With a
suitable cutting tool, cut off the extra thread from the new
U-bolts. Repeat procedure on passenger side.
See Illustration # 24
81. Locate the new rear shocks. Special Note: Shocks
are not included with this suspension system,
shocks need to be ordered as a separate part
number, Tuff Country EZ — Ride Suspension
recommends using a 30” fully extended nitrogen gas
shock. Also, locate (2) new rear upper shock clevis
mounts and the stock upper and lower shock hardware
that was removed from step # 75. Install the new poly
bushings into each end of the new shocks. Special Note:
Make sure to use a lithium or moly base grease prior
to inserting the new bushings into the new shock.
This will increase the life of the bushing as well as
prevent squeaking. Install the new shock boots onto the
new shocks, then install the new shock clevis mounts into
the upper shock eyelet. Install the proper shock sleeve
into the lower eyelet of the new shocks. Working on the
driver side, install the new rear shock using the stock
hardware. Make sure to use thread locker or lock tite.
Torque the stock upper mounting hardware to 15 ft lbs.
and the stock lower mounting hardware to 70 ft lbs.
Repeat procedure on passenger side.
82. Check and double check to make sure that all step
related with the front and rear end were performed
properly. Check and double check to make sure that all
stock and new hardware is torque to proper torque
specifications. Refer to the torque specification sheet at
the end of the installation manual.
83. Install the new tires and wheels and carefully lower
the vehicle to the ground.
CONGRATULATIONS INSTALLATION COMPLETE
SPECIAL NOTE: AN EXHAUST MODIFICATION IS
NEEDED. ALSO A FRONT END ALIGNMENT IS
REQUIRED
ONCE THE EXHAUST MODIFICATION HAS BEEN
PERFORMED REPLACE THE STOCK FRONT DRIVE
LINE BACK INTO THE STOCK LOCATION AND
SECURE USING THE STOCK HARDWARE THAT WAS
REMOVED IN STEP # 5
IF YOU HAVE ANY QUESTION AND OR CONCERS
ABOUT THE INSTALLATION PLEASE FEEL FREE TO
CONTACT TUFF COUNTRY
Torque Settings
5/16” 15—18 ft lbs.
3/8” 28—32 ft lbs.
7/16” 30—35 ft lbs.
1/2” 65—85 ft lbs.
9/16” 85—120 ft lbs.
5/8” 95—130 ft lbs.
3/4” 100—140 ft lbs.