Bushings that rotate freely
TeraFlex IR bushings let the control arm rotate without binding as the axle twists, which keeps the suspension flexing smoothly and helps the arms ride quietly on the highway.
TeraFlex Alpine IR Long Control Arm & Bracket Kit, 8-Arm (3"-6" Lift) (4-Door) for 2018-2026 Jeep Wrangler
$4,055.97
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Fits the same truck
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Watch the install
TeraFlex's own install video for this kit on a JL Wrangler. Watch it before the job to see the steps and tools involved.
Bushings that rotate freely
TeraFlex IR bushings let the control arm rotate without binding as the axle twists, which keeps the suspension flexing smoothly and helps the arms ride quietly on the highway.
Adjust geometry with precision
Adjustable Alpine arms let you set caster, pinion angle and axle position exactly for your lift, while preset Sport parts handle common heights with no adjustment needed.
Flex over every obstacle
With the geometry corrected and the bushings working freely, a lifted Jeep tracks straight on the road and keeps its tires planted over rocks and ruts.
Watch the install
TeraFlex's own install video for this kit on a JL Wrangler. Watch it before the job to see the steps and tools involved.
Frequently Asked Questions
Straight answers on specs, fit and support
Do I need new control arms after a lift?
Lifting changes caster and pinion angle. Small lifts can often use preset Sport arms or brackets, while taller lifts benefit from adjustable Alpine arms to dial geometry back in.
What is the difference between Alpine and Alpine IR?
Both are adjustable. Alpine IR arms use TeraFlex Independent Rotation bushings, which rotate freely to reduce bind and let the arms be torqued with the Jeep in the air.
Short arms or long arms?
Short arms bolt to the factory mounts and suit mild to moderate lifts. Long arm kits relocate the mounts for more travel and a smoother ride on taller lifts, but require cutting off the factory brackets. Each listing states the lift range it is built for.
Can I replace just one arm?
Yes. Arms are sold individually by position, in pairs and as full 8-arm kits. Match the position in the title to the arm you are replacing.
Do the arms and brackets fit every powertrain?
Most do. A few long arm bracket kits do not fit the 4xe plug-in hybrid, and the fit notes on each listing name any exclusion. Plan on an alignment after any control arm change.
What warranty applies?
TeraFlex covers control arms and IR bushings for life. Alpine control arm bushings other than IR are covered for 1 year.
What our customers say
5 · 4 reviews
Beach4X4
09/03/2026
Teraflex
Looks great and will be instrumental to extra height upgrade down the road.
JLU_392
08/29/2026
Game changer on the trail
Made my 392 a whole new experience on the trail!!!
RedHotRubicon
05/20/2026
Worth the Money
Bought after hearing so many great things about the IR bushings and their longevity, could definitely see more flex opposed to using stock arms. For anyone running under 4.5" of lift, this is the way to go.
Customer
12/01/2025
Installed on 2020 Jeep 4d Rubicon
Installed on 2020 Jeep 4d Rubicon with a TeraFlex 3.5 inch lift. Completed install in my driveway with jack stands. It was a little difficult to torque the nuts due to body position. Otherwise, all parts fit perfectly, no issues at all. Product is very well made and allowed me to adjust the pinion angel and wheel base. The instructions were pretty good as well. I would have preferred to know the end torque value rather than torque plus add degrees (i.e. 74ft lbs + 185 degrees).