Tuff Country 24820 - Ford 80-96 F250 4 box kit - Manual (Page 7)

off set centering bolt hole, the longer end of the new
add-a-leaf needs to be installed towards the rear of
the vehicle. Also Tuff Country EZ-Ride Suspension
recommends not using any air tools when installing
the new rear 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. Torque the new centering bolt to 40 ft. lbs. With a
suitable cutting tool, cut off the excess thread from the
new centering bolt. Repeat procedure on passenger
side.
See Illustration # 9
50. Locate (2) new rear lifted blocks. Working on the
driver side, install the new rear lifted block between the
stock axle and the stock spring assembly. Special Note:
The new rear lifted block has a slight taper to it,
make sure to install the new rear lifted block with the
smaller end towards the front of the vehicle. Repeat
procedure on the passenger side. Carefully raise up on
both hydraulic floor jacks at the same time until the newly
installed lifted blocks seat properly with the stock spring
assembly. Special Note: Make sure that the nipple on
the new rear lifted block seats properly into the
stock spring perch.
See Illustration # 10
51. Locate (4) new 5/8” x 3 5/8” x 14 5/8” Round U-bolts,
the stock upper U-bolt plates that were removed from
step # 47, (8) new 5/8” U-bolt high nuts and (8) new 5/8”
U-bolt washers from hardware bag 58NW. Working on
the driver side, install the stock upper U-bolt plate into
the stock location. Install the new U-bolts into the stock
location and secure using the new 5/8” x 3 5/8” x 14 5/8”
round U-bolts and hardware. Torque to 130 ft lbs.
Repeat procedure on the passenger side.
See Illustration # 10
52. Locate the new rear shocks and the stock shock
hardware that was removed from step # 46. Working on
the driver side, install the new shock into the stock upper
and lower location and secure using the stock hardware.
Torque to 75 ft lbs. Repeat procedure on the passenger
side.
53. Carefully remove both hydraulic floor jacks from
under the rear axle.
54. Check and double check to make sure that all steps
were preformed properly. Check and double check to
make sure that all stock and new hardware is torque to
proper torque specifications. Special Note: Refer to the
owners manual and the torque setting sheet at the
end of the installation manual.
55. Install the tires and wheels and carefully lower the
vehicle to the ground.
Congratulations, Installation
Complete
Once the installation is complete, take the
vehicle directly to an alignment shop for
proper front end alignment.
Special Post Installation Procedure: Make
sure that the new mounting hardware that
connects the new twin “I” beam axle pivot
drop brackets to the stock location are
check every 3000 miles for proper torque, if
these bolts are not properly torqued, they
will loosen up and could cause serious
damage to the new twin “I” beam axle pivot
drop brackets and or vehicle. Tuff Country
EZ-Ride Suspensions take no responsibility
for improper installation or improper post
installation procedure.
If you have any questions and or concerns,
please feel free to contact Tuff Country EZ-
Ride Suspension. (801) 280-2777
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.