Long-Travel Boomerang shackles are longer
and provide 1.5-inches of lift while also giving
the leaf spring more ability up and down for
more travel. Deaver prerunner leaf springs were
used in conjunction with the Synergy 4-Link
Long Travel Kit. This kit still uses stock-length
(eye-to-eye) leaf springs, so you can still buy
off-the-shelf springs that are readily available.
We matched the rear to the front with another
pair of Fox Performance Series 2.0 IFP Shocks.
The Synergy wheel adapters are not necessary
for this kit and were only used to put factory
JK take-off wheels and tires on our XJ to save