JKS 2700 - Manual (Page 3)

JKS AC OS Pro™ Installation PN 2700 Page 3 of 8

4. CUT UPPER SPRING RETAINER
The majority of the factory spring retainer must be
permanently removed from the upper spring mount in
order to install the ACOS Pro
 . This modification is not
reversible and should only be performed by an
experienced mechanic or fabricator.
 Mark a location on the upper spring retainer that
is 1
” away from the upper spring mount.
 Cut away the upper spring retainer as indicated
in the picture below. HINT: A die grinder with
cut-off wheel or reciprocating saw is useful for
cutting upper spring retainer.

5. INSTALL MAIN BODY OF ACOS
PRO

ON UPPER SPRING MOUNT
 Place the Reinforcement Ring (A) above the
upper spring mount and align the mounting
holes. Hint: On Cherokee XJ and Comanche
MJ models it will be necessary to first remove a
factory mounting stud for the air intake box that
interferes with the Reinforcement Ring. A die
grinder with cut-off wheel is useful for removing
the mounting stud.
 Position the Main Body (B) against the bottom
of the upper spring mount and align the
mounting holes.
 Insert a 5/16” x 1-1/4” Cap Bolt (C) through
each hole. Loosely secure with a 5/16” Nylock
Nut (D) from above the spring mount.
HINT: When installed correctly, the
Reinforcement Ring (A) and Main Body (B) will
sandwich the upper spring mount.
 Once all six bolts have been installed, tighten
the 5/16” Nylock Nuts (D) to 40 ft-lbs. using a
torque wrench.

6. SET ADJUSTER RING FOR
DESIRED RIDE HEIGHT
 Apply spray lubricant to threads of Main Body
(B). Install Adjuster Ring (E) by threading
clockwise onto Main Body (B).
 Slide Isolator Pad (G) onto Main Body until flush
with Adjuster Ring (E).
IMPORTANT: Vehicle ride height is determined
by measuring the distance between the
top of Main Body and bottom of Isolator Pad,
and then
subtracting 3/4” (0.75 in.).
X
” – 3/4” = RIDE HEIGHT *
* Represents increase in ride height over OE suspension
WARNING
DO NOT EXCEED
MAXIMUM RANGE OF ADJUSTMENT
ADJUSTMENT RANGE
MINIMUM: 1- 3/8” (1.375 in.)
MAXIMUM: 3- 1/4” (3.250 in.)
 Rotate Adjuster Ring (E) to desired position and
tighten the recessed
3/8” x 1-1/4” Cap Bolt (F)
to lock in place.