TeraFlex JK: Alpine IR Short Arms provide complete alignment adjustability and dependability for maximum performance on JK Wrangler/Unlimited models with 2-4 Inch Lifts. Bolts to the factory control arm mounting brackets.

Our innovative, maintenance-free IR Bushings provide unrestricted rotation and flex as well as excellent NVH damping to improve on- and off-road ride quality and performance.
Can be added to any existing suspension lift.
Includes:

• Alpine IR Short Arm Pairs:
  • Arm Pair - Front Upper (# 1415570)
  • Arm Pair - Front Lower (# 1415580)
  • Arm Pair - Rear Upper (# 1415590)
  • Arm Pair - Rear Lower (# 1415600)

Fitment:

• JK Wrangler (2-door)
• JK Wrangler Unlimited (4-door)

Specs:

• Lift Height: 2-4 Inch

Control Arm Specs:

• JK: Alpine IR Short Arm Pair - Front Upper (# 1415570):
  • Tube Diameter & Wall: 42mm x 4mm
  • Factory Length: 18-3/4 Inch
  • Min. Length: 18-1/2 Inch
  • Max. Length: 19-3/4 Inch
  • Bolt - Both: 12mm
  • IR Bushing - Axle: OEM
  • IR Bushing - Frame: 611017
• JK: Alpine IR Short Arm Pair - Front Lower (# 1415580):
  • Tube Diameter & Wall: 42mm x 4mm
  • Factory Length: 22-5/8 Inch
  • Min. Length: 22-3/4 Inch
  • Max. Length: 24 Inch
  • Bolt - Both: 14mm
  • IR Bushing - Both: 611015
• JK: Alpine IR Short Arm Pair - Rear Upper (# 1415590):
  • Tube Diameter & Wall: 42mm x 4mm
  • Factory Length: 17-7/16 Inch
  • Min. Length: 17-5/8 Inch
  • Max. Length: 18-7/8 Inch
  • Bolt - Both: 14mm
  • IR Bushing - Both: 611016
• JK: Alpine IR Short Arm Pair - Rear Lower (# 1415600):
  • Tube Diameter & Wall: 42mm x 4mm
  • Factory Length: 19-3/4 Inch
  • Min. Length: 19-3/4 Inch
  • Max. Length: 21-1/16 Inch
  • Bolt - Both: 14mm
  • IR Bushing - Both: 611015