Tuff Country 54070 - Toyota Tundra 07-14 4 lift kit - Manual (Page 8)

22. Locate the new upper strut spacer. Install the new upper
strut spacer to the modified coil over and secure using the
OE hardware. Make sure to use loctite and torque to 45 ft.
lbs. Special note: There is a flat spot on the new spacer
and this will be installed on the coil over facing towards
the outside of the vehicle. Place the driver side strut aside
for later installation into the vehicle.
23. Repeat steps # 18 - 22 on the passenger side strut.
24. Locate (8) 3/8” nylon lock nuts and (8) 5/16” USS flat
washers from hardware bag 54070NB1. Working on the driv-
er side, install the new modified strut back into the upper OE
location and secure using the new hardware. Special note:
There is a flat spot on the new spacer and this will be
installed on the coil over facing towards the outside of
the vehicle.Do not tighten at this point. Repeat procedure
on the passenger side.
25. Working on the driver side, secure the bottom portion of
the strut to the lower control arm using the OE hardware.
Make sure to use loctite and torque to 150 ft lbs. Repeat pro-
cedure on the passenger side.