JKS 2710 - Manual (Page 3)

JKS ACOS Pro ™ Installation PN 2710 Page 3 of 5

4. INSTALL ACOS PRO ON PREPARED
SPRING RETAINER
 Apply a thin coating of anti-seize lubricant over
the entire surface of the upper spring retainer in
which the paint has been removed.
 Slide Threaded Tube (A) of ACOS Pro  over
the lubricated spring retainer until the flange
end rests against the upper spring mount.
HINT: If Threaded Tube will not slide all of the
way onto the upper spring mount, temporarily
install Bump Shock Adapter (E) on lower end of
Threaded Tube and tap lightly with a mallet until
flange end rests against the upper spring
mount. A rubber or plastic mallet is strongly
recommended to prevent damage to threads.
To prevent the Threaded Tube (A) from pulling away
from the upper spring mount when the suspension is
unloaded, the flange must be welded in place
 Weld a 1” section of the flange to the upper
spring mount as illustrated below.
HINT: Remove any paint from the spring mount
and zinc plating from the flange of the Threaded
Tube (A) to ensure proper penetration at the
location of the weld.
 Allow the welded section to cool and then paint
any bare metal to prevent corrosion. Protect
threads of Threaded Tube (A) from overspray.

5. SET ADJUSTER RING FOR
DESIRED RIDE HEIGHT
 Apply spray lubricant to threads of Threaded
Tube (A).
 Install Adjuster Ring (B) by threading it onto the
Threaded Tube (A).
 Slide Isolator Pad (D) onto Threaded Tube (A)
until flush with Adjuster Ring (B).
IMPORTANT: Vehicle ride height is determined by
measuring the distance between the bottom of upper
spring mount and bottom of Isolator Pad, and then
subtracting 1/2
” (0.50 in.).
X ” – 1/2” = RIDE HEIGHT *
* Represents increase in ride height over OE suspension
WARNING
DO NOT EXCEED
MAXIMUM RANGE OF ADJUSTMENT
ADJUSTMENT RANGE *
MINIMUM: 1 ” (1.0 in.)
MAXIMUM: 3-1/2 ” (3.5 in.)
 Rotate Adjuster Ring (B) to desired position and
tighten the recessed 5/16
” x 1-1/4” Cap Bolt (C)
to lock in place.

6. INSTALL BUMP SHOCK ON
THREADED TUBE OF ACOS PRO

 Apply a drop of medium strength thread locking
compound to bottom few threads of Threaded
Tube (A).
 Install Bump Shock Adapter (E) onto Threaded
Tube (A) and tighten by hand until snug.
IMPORTANT: If flange end of Threaded Tube (A)
begins to pull away from the upper spring mount
before the Bump Shock Adapter (E) is completely
installed, turn the Bump Shock Adapter counter-
clockwise one full turn and reseat Threaded Tube
against upper spring mount.
 Apply anti-seize lubricant to threads of Bump
Shock Assembly (G).
 Completely thread the Bump Shock Nut (F)
onto Bump Shock Assembly (G).