Jeep Inner Axle Sleeve Kit Jeep JK/JKU/TJ/XJ/ZJ Synergy MFG

Synergy Manufacturing SKU: FSVG_8012-09


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Synergy Jeep Inner Axle Sleeve Kit Designed to increase the strength of the front D30/44 Axle housings that are prone to bending when larger off road tire are installed and used off road.


  • Jeep Wrangler 1997-2018 (TJ and JK)
  • Jeep Cherokee 1984-2001 (XJ)
  • Jeep Grand Cherokee 1993-1998 (ZJ)


  • Made from 2.0X.250 1026 DOM Tubing (1.50 inch ID), Machined OD to fit snugly into the stock axle housing
  • Inner Axle Sleeves add a 59 percent increase in strength over stock
  • The stock axle housing must be drilled and plug welding for installation
  • Bare Machined Steel Finish


  • All other inner axle sleeve part numbers (5901-30, 5901-44, and 8012-01) have superseded to 8012-09. The 8012-09 inner axle sleeve kit contains axle sleeves with lengths long enough to cover all applications. Trimming of axle sleeves will be required to fit applications other than the JK D30 Axle Housing.
  • Inner Axle Sleeves are not compatible with Jeep JK Rubicon Recon models due to thicker axle tube housings.