Synergy 8200 - Jeep XJ 4-Link Long Travel System - Manual (Page 17)

This is how the spring hanger should look after the first cuts.
3) Next, remove the inner part of the rear spring hanger by first locating the approximately 12 spot welds
holding the inner bracket on (6 on the face of the frame, 4 on the under side of the frame and 2 on the body
to frame rail seam).
a. Drill out the spot welds using at least a 3/8” diameter spot weld cutter being careful not to drill
through the unibody.
b. There is also a seam weld on the rear of the hanger that needs to be cut. A 4.5” angle grinder
with cut-off wheel works well, again try not to cut into the unibody.
Red Arrows indicate spot welds; black arrow indicates the seam weld. All of which need to be cut to remove
the inner part of the spring hanger cleanly.
4) Once welds have been cut, remove the inner spring hanger using either a hammer and chisel, or an air
hammer with a chisel end. Be careful not to damage the unibody if using an air-hammer.