Teraflex JK HD Dana 44/30 Upper & Lower Ball Joint Set of 4 w/ Knurl

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 features a machined grease passage in the lower joint housing assembly provides lubrication access without affecting the ball joint load surface. These ball joints are specifically fit to the Jeep Wrangler JK Dana 30 and Dana 44 axles. Each ball joint is durably constructed from 4140 chromoly and housed in 1045 carbon steel housing. There is even a hard alloy tool steel slotted wear plate for each ball/stud to offer more socket wear protection. When it comes time to do the occasional maintenance, it is very easy to complete any servicing with the adjustable end cap with lateral greasing access.

Fitment: Jeep Wrangler JK Important Notes:

We recommend ball joints without knurls as they will not score the inner knuckle and open up the bore. We also offer ball joint with knurls for ball joints that have a loose press fit in the inner knuckle due to repeated ball joint replacement or if knurled ball joints have been installed in the past.

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Specifications