26 Jp jpmagazine.com NOVEMBER 2019
THE STRETCH FACTOR
The heart of the system is the^1 ⁄ 4 -inch-thick steel three-piece crossmember. This setup bolts
to the TJ’s framerails, and the heavy-duty centersection offers an additional inch of ground
clearance over stock.
To get the chassis ready for the new suspen-
sion, all of the stock lower control-arm
mounts will need to be removed. Since this kit
uses coil springs out back, you will also need
to remove the stock coil perch and track bar
mount at the frame.
One of the unique aspects of the Off Road Pro
version is the 7075-T6 aluminum control arms.
From Ultr a4 car s to ever yday tr ail wheeler s,
we are seeing a trend toward aluminums.
This is largely due to the strength and weight
savings it offers over a more traditional DOM
control arm. Each link is fit with Krawler
Joints, which makes for easy suspension
adjustment and plenty of degree rotation for
the suspension to articulate freely.
Set back 5 inches from the stock coil perch,
Rock Krawler provides a weld-on coil perch
to secure the springs out back. This setup
comes with an integrated bumpstop mount,
which is also adjustable.The new rear suspension is set up as a triangulated four-link and allows you to retain your
stock rear sway bar if you so choose. You will need to plan on a new exhaust system and
having your driveline lengthened for this kit.To s e cur e the
new upper
control arms,
Rock Krawler
provides an
axle truss. This
truss is axle-
specific and, in
this case, was
ordered for a
Dana 44 rear
axle. To burn it
in place, you will
need to remove
the axle’s upper
control arm
and track bar
mounts.