5
(4) Rotate the upper bracket back to the original location
and install the frame bolt, flat washer, and lock nut
through the second hole that was drilled. Now tighten
both of the installed fasteners to 20 ft–lbs. Centerpunch
and drill a third
3
/
8
" hole through the rear lower mounting
hole and insert
3
/
8
"-16 x 4" bolt, flat washers and lock
nut (Tighten to 20 ft–lbs).
(5) As shown in Figure 6, a self tapping frame bolt is required
in the forward lower mounting hole. Drill a
5
/
16
" hole, (no
larger) insert and tighten the self tapper (15 ft–lbs). Do
not overtighten.
(6) Assemble the tool with the remaining bracket as shown
in Figure 1 and attach lower bracket in the same manner
as step 3.
b. Driver Side Installation:
(1) Centerpunch and drill a
3
/
8
" hole through the forward
lower mounting hole. Insert the
3
/
8
" x 4" frame bolt/flat
washers/locknut and leave loose.
(2) Next centerpunch and drill through the rear lower
mounting hole. Do not insert the bolt.
(3) The installation tool can now be taken out by removing
the upper pal nut, loosening and removing the tool from
the bottom bolt (leave in place), and slightly rotating the
upper bracket to give you enough room to completely
remove the tool.
(4) Rotate the upper bracket back to the original location
and install the frame bolt, flat washer, and lock nut
through the second hole you drilled. Now tighten both
of the installed fasteners to 20 ft–lbs. Centerpunch and
drill a third
3
/
8
" hole through the rear upper mounting
hole and insert
3
/
8
"-16 x 4" bolt, flat washers and lock
nut (Tighten to 20 ft–lbs).
(5) As shown in Figure 6, a self tapping frame bolt is required
in the forward upper mounting hole. Drill a
5
/
16
" hole, no
larger, and insert and tighten the self tapper (15 ft–lbs).
Do not overtighten.
10. Install the precoated air fitting into the thread post of the air
spring, finger tight plus two turns. Do not overtighten. Carefully
thread the bottom of the air spring onto the bolt in the lower
bracket. Leave loose for the final adjustment. Insert the top of
the air spring through the slot in the upper bracket and attach
with a nylon nut (Figure 2).
IMPORTANT: Do not tighten the nylon nut at this time.
11. Use a standard tube cutter, a razor blade, or very sharp knife to
cut the air line. A clean square cut will ensure against leaks.
Cut the air line in two equal lengths. Drill
5
/
16
" hole for the inflation
valve and mount in a convenient location to adjust air pressure
as illustrated. Rubber washer on outside is for weather seal
(Figures 7 & 8).
CAUTION: Leave sufficient air line slack to prevent any strain
on the valve stem during normal axle motions.
Protective
Sleeves
Air Line
Hose
Clip
#14 Self Taping
Screws
Figure 6
FORWARD
Passenger Side
FORWARD
Driver Side
USE THE SELF TAPPING BOLTS
IN THESE HOLE LOCATIONS
Figure 7
Star Washer
Vehicle Body
or Bumper
Air Line to
Bellows
Rubber Washer
Flat Washer
Figure 8
