Tuff Country 24973 - Ford 05-07 F250/F350 5 box kit - Manual (Page 7)

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 pas-
senger side. Next, remove the wheels and tires from both
sides.
53. Place a pair of hydraulic floor jacks under the rear dif-
ferential and carefully raise up on both hydraulic floor jacks
at the same time until they come into contact with the rear
differential.
54. Working on the driver side, remove the stock shock
from the stock location and save the stock hardware for
later re-installation. The stock shock may be discarded.
Special note: New longer rear shocks are needed, if
you have not already ordered your new rear shocks,
please contact Tuff Country or your local Tuff Country
dealer and order the proper shocks. Tuff Country rec-
ommends using a 33” fully extended nitrogen gas
shock. Repeat procedure on the passenger side.
55. Working on the driver side, remove the stock brake line
bracket that connects to the stock u-bolt plate. Save the
stock hardware for later re-installation.
Photo # 52
56. Working on the driver side, remove the stock u-bolts
from the stock location and discard the stock u-bolts and
hardware. Set the stock upper u-bolt plate aside for later re-
installation. Repeat procedure on passenger side.
57. Carefully lower down both hydraulic floor jacks at the
same time approximately 5”. Special note: Take special
care not to over extend any brake lines and/or hoses.
Working on the driver side, remove the stock block and dis-
card. Repeat procedure on the passenger side.
58. Locate the new rear 5 1/2” blocks. Working on the driv-
er side, install the new rear block between the stock spring
assembly and the stock rear differential. Repeat procedure
on the passenger side. Carefully raise up on both hydraulic
floor jacks at the same time until the stock spring assembly
sits flush with the newly installed 5 1/2” lifted block.
59. Locate the new 5/8” x 3 5/8” x 17” round u-bolts. Locate
(8) 5/8” u-bolt high nuts and (8) 5/8” u-bolt washers from
hardware bag 58NW. Also, locate the stock upper u-bolt
plate. Working on the driver side, install the new u-bolts into
the stock location and secure using the new hardware.
Torque to 135 ft lbs. Repeat procedure on the passenger
side.
60. Locate the stock brake line bracket hardware. Working
on the driver side, secure the stock brake line bracket to
the stock location using the stock hardware. Make sure to
use thread locker or lock tite and torque to 12 ft lbs.
61. 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 33” fully extended
nitrogen gas shock. Locate the new poly bushings and
proper sleeves that are packaged with the new shock and
install them into the upper and lower eyelet of the new
shocks. Special note: Make sure to use a lithium or
moly base grease prior to inserting the new lower
shock bushings and sleeves into the new lower shock
eyelet. This will increase the life of the bushing as well
as prevent squeaking.
62. Locate the new shock boots. Special note: Tuff
Country highly recommends installing shock boots
once the new shocks have been installed and the
shock boots need to be ordered as a separate part #. If
you have not already ordered your new shock boots,
please feel free to contact Tuff Country or your local
Tuff Country dealer and order your new shock boots.
Tuff Country EZ-Ride suspension offers: Red, light
blue, dark blue, black, yellow or gray shock boots. If
shock boots are not installed on the new shocks, dam-
age could occur to the piston of the new shock. If the
new shock is damaged due to not having a shock boot
installed, warranty will be void. Install the new shock
boots onto the new shocks and secure the lower part of the
new shock boots to the new shocks with the new shock ties
that are provided with the new shock boots.
63. Locate the upper and lower stock shock hardware.
Working on the driver side, install the new rear shock into
the stock upper and lower location and secure using the
stock hardware. Torque to 80 ft lbs. Make sure to use
thread locker or lock tite. Repeat procedure on passenger
side.
64. Carefully remove the (2) hydraulic floor jacks from
under the rear differential.
65. Locate (2) PB6199 short poly bump stops and (2)
PB6052 taller poly bump stops from hardware bag
24973PL. Also, locate (4) 3/8” nylock nuts and (4) 5/16”
USS flat washers from hardware bag 24973NB. Working
on the driver side of the stock rear spring assembly.
Remove the (2) stock teflon inserts located on the stock
over load in the stock spring assembly. Discard the stock
teflon inserts. Install (1) PB6052 (taller poly bump stop) in
front location on the stock spring assembly. Secure using
the new 3/8” hardware. Torque to 28 ft lbs. Install (1)
PB6199 (shorter poly bump stop) in the rear location on the
stock spring assembly. Secure using the new 3/8” hard-
ware. Torque to 28 ft lbs. Repeat procedure on the pas-
senger side.
Photo # 53 / front bump top
Photo # 54 / rear bump stop
Special note: If the vehicle that you are working has a
1 piece rear drive shaft, please skip to step # 66.
66. Place a hydraulic floor jack under the rear carrier bear-