Teraflex JK HD Dana 44/30 Upper & Lower Ball Joint Set of 4 w/ Knurl Features:
Extremely hard Sintered wear bushings to handle side load demands without failure
Magnesium Phosphate coating to inhibit corrosion throughout
4140 chrome moly Ball/stud and a 1045 carbon steel housing
Factory style serrated flange nut and grease fitting Lower ball joint features
Hard alloy tool steel slotted wear plate for ball/stud to socket wear protection
4140 chrome moly ball/stud with magnesium phosphate anti-corrosion coating
Factory style serrated flanged castle nut
Adjustable end cap with lateral greasing access for easy on the Jeep servicing
CR black Neoprene boot locked into position with both a spring as well as a spring steel ring
The Teraflex JK HD Dana 44/30 Upper & Lower Ball Joint Set of 4 w/ Knurl can Handle the Heavy Load of Oversized Tires
Just because you want to upgrade to oversized off-road wheels and tires, does not mean your suspension can just handle it without a few minor upgrades. One thing you will need is a set of ball joints that can handle the increased load caused by oversized tires and offset wheels.

Jeep Teraflex Heavy Suty Dana 30/44 Ball Joint Kit Features:
Upper and Lower HD Ball Joint Set
Replaces weak factory ball joints
4140 chromoly steel construction
Unique design for optimum performance
Heat treated for durability
Grease fitting for easy servicing
Without Knurls
Sold as a set of 4
Improved Off-Road Performance Your Jeep’s weak factory ball joints aren’t made for constant off-road abuse, so it only makes sense to upgrade to a high-quality replacement that can handle all of your extreme applications. Teraflex’s Heavy Duty Replacement Ball Joints are a unique and effective solution to handle the demands of your off-road style.