TeraFlex 4990900 Front Axle Inner Sleeve & Upper Inner Knuckle Gusset Kit

TeraFlex 4990900 Front Axle Inner Sleeve & Upper Inner Knuckle Gusset Kit
140.99In stock
  • Brand: TeraFlex
  • |
  • SKU: TF-4990900
  • |
  • Part Number: 4990900

2007-2018 Jeep Wrangler 2-Door/4-Door (JK) 2WD/4WD Gas

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Product Details

TeraFlex JK: Front Axle Inner Sleeve and/or Inner Knuckle Gusset Kits reinforce the weak axle tubing and/or knuckles on JK Wrangler/Unlimited Dana 30 or Dana 44 factory axles. This prevents unwanted bending or breaking under extreme conditions.

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2007-2018JeepWrangler 2-Door (JK)2WDGas
2007-2018JeepWrangler 2-Door (JK)4WDGas
2007-2018JeepWrangler 4-Door (JK)2WDGas
2007-2018JeepWrangler 4-Door (JK)4WDGas


  • Front Axle Sleeve Kit (# 4990700)
  • Inner Axle Sleeve – Short Side
  • Inner Axle Sleeve – Long Side
  • Front Axle Inner Knuckle Gusset Kit – Upper (# 4990800)

Quick Specs

  • 27" L x 4.5" W x 3" H

Important Notes

  • Does NOT fit Rubicon Recon w/ Dana 44 front axle w/ 0.375” wall.
  • Install time : 5 Hours (Complete Kit) or 4 Hours (Sleeve Kit)
  • ATTN State of California Consumers warning: Cancer and Reproductive Harm www.p65warning.ca.gov