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.

Fitment
| Years | Make | Model |
|---|---|---|
| 2007-2018 | Jeep | Wrangler JK |
| 2007-2018 | Jeep | Wrangler JK Unlimited |
| 1999-2004 | Jeep | Grand Cherokee WJ |
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
Quick Specs
- 2 hours install time
- Part Number : 3440020
Important 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.
TeraFlex 3440020 Dana 30/44 HD Ball Joint Kit w/ Knurl - Upper & Lower - Set of 2
2007-2018 Jeep Wrangler JK 2007-2018 Jeep Wrangler JK Unlimited 1999-2004 Jeep Grand Cherokee WJ
2007-2018 Jeep Wrangler JK 2007-2018 Jeep Wrangler JK Unlimited 1999-2004 Jeep Grand Cherokee WJ
- SKU : 3440020
- Part Number : 3440020
$171.99
$171.99
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