Tuff Country 55905 - Toyota Tundra 99-03 knuckle 5 lift kit - Manual (Page 6)

secure the newly installed one piece lower sub frame to
the newly installed passenger side differential drop
bracket and secure using the new 1/2” x 1 1/2” bolt and
hardware. Special note: Do not tighten at this point.
Make sure to use thread locker or lock tite. Also,
when installing the new passenger side differential
drop bracket to the new one piece lower sub frame,
make sure that the new passenger side differential
drop bracket is installed towards the inside of the
new differential tabs on the new one piece lower sub
frame.
45. Locate the new 12 mm unitorque nut and 12 mm lock
washer from hardware 55905NB. Secure the stock front
differential rear mounting point to the newly installed one
piece lower sub frame the new 12 mm unitorque nut and
lock washer. Torque to 64 ft lbs.
Illustration # 6
46. Move back to the new 3/4” x 4 1/2” bolts and the new
3/4” x 5” bolts that secure the new one piece lower sub
frame to the stock front and rear lower control arm
pockets and torque to 130 ft lbs.
47. Move back to the driver side differential drop bracket
and torque the (3) stock bolts to 116 ft lbs. Also, torque
the stock hardware that connects the new driver side
differential drop bracket to the stock front cross member
to 101 ft lbs.
48. Move back to the passenger side differential drop
bracket and torque the (2) stock bolts to 116 ft lbs. Also,
torque the stock hardware that connects the new
passenger side differential drop bracket to the stock front
cross member to 101 ft lbs.
49. Working on the driver side, torque the new 1/2” x 1
1/2” bolt and hardware that connects the new driver side
differential drop bracket to the new one piece lower sub
frame to 75 ft lbs. Repeat procedure on the passenger
side.
50. Locate the stock driver and passenger side lower
control arms and the stock driver and passenger side
cam bolts that were removed in step # 27. Working on
the driver side, install the stock lower control arm into the
newly installed one piece lower sub frame and secure
using the stock cam bolts. Do not tighten at this point.
Repeat procedure on the passenger side.
Illustration # 7
51. Working on the driver side of the stock rack and
pinion, remove the stock bushing and sleeve from the
stock location. The stock bushing and sleeve may be
discarded.
52. Locate (2) MO2382 rack and pinion bushings and (1)
S10076 rack and pinion sleeve from hardware bag
55905SL. Working on the driver side of the stock rack
39. Locate the driver side stock hardware that connected
the stock front differential drop bracket to the stock front
cross member that was removed in step # 32. Also,
locate the passenger side stock hardware that connected
the stock front differential drop bracket to the stock front
cross member that was removed in step # 33. At the
same time, carefully raise up on both hydraulic floor
jacks that are holding the stock front differential until the
new driver and passenger side differential drop bracket
can be attached to the stock front cross member. Secure
the new driver and passenger side differential drop
brackets to the stock front cross member using the stock
hardware. Special note: Do not tighten at this point.
Make sure to use thread locker or lock tite. Also, the
stock over size washers needs to be inverted. Make
sure to invert the stock over size washer before
installation.
Illustration # 2 / Driver side
Illustration # 3 / Passenger Side
40. Carefully remove both hydraulic floor jacks from
under the front differential.
41 Reconnect all the wiring and hoses that were
removed from the stock front differential in step # 35.
42. Locate (2) 3/4” x 4 1/2” bolts, (2) 3/4” x 5” bolts, (8)
3/4” flat washers and (4) 3/4” unitorque nuts from
hardware bag 55905NB. Also, locate the new one piece
lower sub frame. Install the new one piece lower sub
frame into the stock front and rear lower control arm
pockets and secure using the new 3/4” x 5” bolts into the
front location and the new 3/4” x 4 1/2” bolts and
hardware into the rear location. Special note: Do not
tighten at this point. Make sure to use thread locker
or lock tite. Also, when installing the new one piece
lower sub frame, make sure that the rear mounting
stud on the rear portion of the front differential seats
properly into the new one piece lower sub frame.
Illustration # 4 / Front location shown
Illustration # 5 / Rear location shown
43. Locate (1) 1/2” x 1 1/2” bolt, (2) 1/2” flat washers, (1)
1/2” lock washer and (1) 1/2” unitorque nut from
hardware bag 55905NB. Working on the driver side,
secure the newly installed one piece lower sub frame to
the newly installed driver side differential drop bracket
and secure using the new 1/2” x 1 1/2” bolt and
hardware. Special note: Do not tighten at this point.
Make sure to use thread locker or lock tite. Also,
when installing the new driver side differential drop
bracket to the new one piece lower sub frame, make
sure that the new driver side differential drop bracket
is installed towards the inside of the new differential
tabs on the new one piece lower sub frame.
44. Locate (1) 1/2” x 1 1/2” bolt, (2) 1/2” flat washers, (1)
1/2” lock washer and (1) 1/2” unitorque nut from
hardware bag 55905NB. Working on the passenger side,