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Teraflex 3440020 Heavy Duty Ball Joint Pair with Knurling for 99-18 Jeep Wrangler JK, Wrangler Unlimited JK & Grand Cherokee WJ

Heavy Duty Ball Joint Pair with Knurling

Quadratec Part #: 16990-0111

Teraflex Part #: 3440020

Installation
Instructions

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Description

TeraFlex HD ball joints are engineered to handle the increased load caused by oversized tires and offset wheels. The upper ball joint incorporates hard sintered wear bushings to handle extreme side load demands with out failure and includes an easy top access grease port for simple maintenance. The lower ball joint features adjustable preload when assembled as well as future adjustments. The advanced grease system allows grease servicing to be performed without axle shaft removal, even with larger RCV shafts. Dual machined grease passages in the lower joint housing assembly provides lubrication access without affecting the ball joint load surface. The lower ball joint also eliminates the nylon ball socket wear sleeve that is prone to failure.

The knurled joints are designed as a replacement to those knuckles that are enlarged due to wear, or are replacing existing knurled ball joints. Once the bore is enlarged by installing the knurled joints the end user is committed to them (cannot retrofit non-knurled).

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Details

Upper Ball Joint Features

Extremely hard sintered wear bushings to handle extreme side load demands without failure
Magnesium Phosphate coating to inhibit corrosion throughout
Heat treated 4140 chromoly ball/stud & 1045 carbon steel housing
Factory style serrated flange nut & grease fitting
With knurls

Lower Ball Joint Features

Hard alloy tool steel slotted wear plate for ball / stud to socket wear protection
Wear plate features grease channels for increased flow through entire joint ensuring longevity & predictable operation
Magnesium Phosphate coating to inhibit corrosion & friction throughout
Heat treated 4140 chromoly ball / stud
Huge 30mm (1.18”) ball
Factory style serrated flanged castle nut
Ball joint pre-load adjustability provides the end user w/ near effortless wear adjustment (kid includes Preload Adjustment Tool)
Low-profile single lip dust seal eliminates torn conventional dust boot concerns
Adjustable ball stud retaining ring for accurate initial & future preload adjustments that can be done w/out any axle disassembly
Adjustable preload can be performed with simple hand tools
Adjustable end cap with two (2) zerk fittings (“Frog Eye”) allow greasing access from either side w/out axle shaft removal even with larger RCV shafts
Dual helical grease grooves machined in the retaining ring allow spent grease to exit through the low-profile seal
Low-profile seal prevents contaminants, while allowing spent grease to evacuate from the ball joint
With knurls

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 previously.

Installation Notes

Installation Difficulty: