Synergy 8023-X - Jeep JK Synergy Stage 3 Suspension System - Manual (Page 12)

you need to point the pinion up to use a CV style rear driveline, try to only
lengthen the upper arms and leave the lowers at 20.25”. Turn the Johnny joint so
that the grease fitting is adjacent to the adjuster pinch bolt.
• Install the new control arms with the bend upward. The bushing goes at the axle
end and the Johnny Joint goes at the frame end with the pinch bolt and grease zerk
on the top. Reuse the factory mounting bolts. See Figure 16-1
Figure 16-1
17. INSTALL UPPER CONTROL ARMS
• Remove the stock upper control arms and save the mounting hardware
• We recommend that you preset the length of the upper control arms. The
following chart will give you a starting point for the length of the upper control
arms. The final length will be determined when the jeep is sitting on the springs
and tires to get the pinion at the correct angle.
UCA LENGTH WHEN USING 20.25”LCA LENGTH, & 3-4.5” LIFT
VEHICLE TYPE PINION ANGLE UPPER CONTROL ARM LENGTH
4 DR WITH CV 10 DEG 18.25”
2 DR WITH CV 15 DEG 18.75”
• Install the new control arms with the bend inward toward the frame. The bend is
for tire clearance. The bushing goes at the frame end and the Johnny Joint goes at
the axle end with the pinch bolt and grease zerk on the bottom. Reuse the factory
mounting bolts. See Figure 17-1