Improve the strength, adjustability, and ride in the rear suspension of your KJ. This bolt in upgrade has great features that will take your KJ to the next level. Maximize your flex and uptravel by adding the IRO Adjustable Bumpstop Extension Kit (13399) to the rear axle.


FEATURES:
  • 1.25" solid cold rolled steel structure
  • .25" laser cut steel center gusset plate
  • 1.5" male threaded adjusting with nearly 3" of front to back adjustment
  • 2 5/8" flex joint on the axle end takes the place of the weak factory ball joint and allows more articulation. It's also greasable and rebuildable.
  • Ridiculously beefy axle mount mates perfectly with the flex joint
  • Bushing angles corrected for lifted KJ's
  • Huge Cool Factor!

INCLUDES:
  • 1 Heavy Duty Adjustable A-Arm
  • 1 Male Adjusting End with Jam Nut
  • 1 Heavy Duty Axle Bracket
  • 2 Bushings, 1 Flex Joint Assembly
  • All Necessary Hardware


INSTRUCTIONS:

FITMENT NOTE: A-ARM AXLE BRACKET DOES NOT WORK ON DANA 35.