TeraFlex JK: Alpine IR Long Control Arms and Alpine Long Arm Brackets provide complete alignment adjustability and dependability for maximum performance on JK Wrangler/Unlimited models with 3-6" lifts. Can be added to an existing suspension lift.
Our innovative IR Bushings provide unrestricted rotation and flex as well as excellent NVH damping. These maintenance-free bushings improve on- and off-road ride quality and performance.
On higher lifts TeraFlex JK: Alpine Long Arm Brackets (INCLUDED) reposition the frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during droop and shock load transferred through the control arms.
CAD-engineered Alpine Long Arm Brackets are designed for maximum strength. By streamlining the frame-end mounting points we were able to incorporate both upper and lower mounts in each bracket thus simplifying installation while maintaining a factory appearance.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product color=5476,features_benefits=JK Alpine IR Long Control Arms:
- Adjustable Alpine IR Long Control Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angle and tune anti-squat geometry for proper suspension alignment on 3-6" lift kits
- Alpine IR Long Control Arms are constructed from durable 42mm x 4mm (upper) or 50mm x 5mm (lower) wall DOM tube for maximum strength
- On higher lifts, Alpine Long Arm Brackets reposition frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during droop and shock load transferred through the Alpine IR Long Control Arms
- Alpine Long Arm Brackets are gusseted and reinforced for superior strength w/ reduced NVH compared to other long arm kits
JK Alpine IR Control Arms (all):
- Re-centers axles in the wheel well for proper suspension movement. Can also be used to increase wheelbase
- Full range of movement will not restrict articulation or flex off-road
- Innovative IR Bushings provide unrestricted rotation and flex as well as excellent NVH damping
- Maintenance-free IR Bushings improve on- and off-road ride quality and performance
- Zero maintenance forged threaded joints for smooth quiet flex
- Premium black e-dipped coating on tube and forged rod end housing provides superior durability and corrosion resistance
- Anodized 6061-T6 aluminum clamp collar to secure rod end after length adjustment
- TeraFlex Lifetime Warranty against defects
,fitment_info=Fits:
- JK Wrangler (2-door)
- JK Wrangler Unlimited (4-door)
- 3-6" Lift
Long Control Arm Specs:
JK: Alpine IR Long Control Arm Kit - Front Upper (# 1315570):
- Tube Diameter & Wall: 1-5/8" X 0.157" (42mm X 4mm)
- Factory Length = 18-3/4"
- Min. Length = 27-3/8"
- Max. Length = 28-7/8"
- Axle End = 7/16" (12mm) Bolt
- Frame End = 9/16" (14mm) Bolt
- Thread = 1-1/4"-12 UNF
JK: Alpine IR Long Control Arm Kit - Front Lower (# 1315580):
- Tube Diameter & Wall = 2" X 0.197" (50mm X 5mm)
- Factory Length = 22-5/8"
- Min. Length = 33-3/4"
- Max. Length = 35-1/4"
- Both Ends = 9/16" (14mm) Bolt
- Thread = 1-1/4"-12 UNF
JK: Alpine IR Long Control Arm Kit - Rear Upper (# 1315590):
- Tube Diameter & Wall: 1-5/8" X 0.157" (42mm X 4mm)
- Factory Length = 17-7/16"
- Min. Length = 20"
- Max. Length = 21-1/2"
- Both Ends = 9/16" (14mm) Bolt
- Thread = 1-1/4"-12 UNF
JK: Alpine IR Long Control Arm Kit - Rear Lower (# 1315600):
- Tube Diameter & Wall = 2" X 0.197" (50mm X 5mm)
- Factory Length = 19-3/4"
- Min. Length = 35-3/4"
- Max. Length = 37-1/4"
- Both Ends = 9/16" (14mm) Bolt
- Thread = 1-1/4"-12 UNF
,height=26,installation_time=12 Hours,length=40,product_image_size=Default,product_notes=- Requires cutting and welding.
- Requires cutting/removal of factory control arm bracketry to install Alpine Long Arm Brackets.
- TeraFlex adjustable Long Control Arms (Alpine IR: # 1315000 & Alpine: # 1315000) MUST be used w/ Alpine Long Arm Bracket Kit (# 1957000) - INCLUDED.
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