TeraFlex Dana 30 44 HD Upper / Lower Ball Joint Kit for Wrangler JK JKU 3442022

Dana 30/44 HD Ball Joint Kit w/ Knurl - Upper & Lower - Set of 4

TeraFlex JK: HD Ball Joints are engineered to handle the increased load caused by oversized tires and offset wheels. Fits all JK Wrangler/Unlimited models with Dana 30 or Dana 44 front axles.

Features:

• Heat treated 4140 chromoly ball/stud and 1045 carbon steel housing
• Magnesium Phosphate coating to inhibit corrosion throughout
  
  Upper Ball Joint:
• Extremely hard sintered wear bushings to handle extreme side load demands w/out failure
• Factory-style serrated flange nut and grease fitting
  
  Lower Ball Joint:
• Hard alloy tool steel slotted wear plate for ball/stud to socket wear protection
• Wear plate features dual helical grease channels for increased flow through entire joint ensuring longevity and predictable operation
• Factory-style serrated flanged castle nut
• Low-profile single lip dust seal prevents contaminants
• 30mm (1.18") adjustable ball stud for accurate initial and future preload adjustments using simple hand tools
• 2 grease zerk fittings allow greasing access from either side

Product Notes:

• Ball Joints w/out Knurl won’t score the inner knuckle and open the bore.
• Ball Joints w/ Knurl are for inner knuckles that have a “loose press fit” due to repeated ball joint replacement and/or where knurled ball joints have been installed.