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KIT102 - Jeep Wrangler JK & Grand Cherokee HD Ball Joint Kit - (2)BJ107,(2)BJ109

In Stock - Ready To Ship
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Be sure to check vehicle fitment below

What It Fits:
Jeep Grand Cherokee (1999-2004) 2WD or 4WD
Jeep Wrangler JK (2007-2018) 4WD

The Special Sauce:

HOUSING
  • SAE 1045 Solid Steel Forged Housing: This is unequivocally the best carbon alloy steel for this application.
  • Knurled Housings: The preferred design for aftermarket installations.
  • CNC Machined Housing: Make our parts and bearings dimensionally perfect, eliminating any die wear issues.
BALL STUDS
  • SAE 4140 Hot Forged Chromoly Ball Studs: For the strongest possible metallurgy.
  • Induction Heat Treated Ball Studs: Provides a very precise heat treatment to the exact depth and location we want it.
  • LOWER: Polished Ball Studs: Built like an anti-friction bearing with extremely precise tolerances.
  • Rolled Threads: Made by pressing the shape of the threads into the ball stud instead of cutting. This strengthens the threads instead of weakening them and allows for easy movement of hardware. This ain't no Ikea furniture!
  • Step Threads: Allows for very easy movement of hardware on install and superior holding when torqued (installer choice).
BEARING DESIGN
  • UPPER: Carbon Bearing Design: Used mainly in Jeep and Dodge upper ball joints is the solver of all things wobbly. Like all our products.
  • LOWER: Military Grade Acetal Bearing: The same bearing material spec'd by the US military for Hummer ball joints. This material is: dimensionally stable (doesn't expand or contract with hot or cold, water or oil absorption), can be polished smooth as steel, is anti-friction, doesn't wear itself out under load like metal on metal, and can take an absolute pounding.
BOOTS
  • CR Rubber Boots: The most durable material for undercar applications. Resistant to deterioration from road level ozone, oil/gas/engine fluids and extreme heat or cold.
  • Pancake Boot 
FINISH
  • Phosphate Finish: Extremely durable. Double coated. Rugged look.
HARDWARE
  • Grade 8 - Class 10.9 Hardware: Superior tensile strength.
  • Castle Nut: Industry standard where high vibration loads occur.
LUBRICATION
  • Pre Threaded Zerk Housing: If you have ever installed a MOOG Ball Joint without a pre-threaded zerk fitting you will understand what a simple but great feature this is. Another installer fav.
  • Greaseable: Because it should be.
  • Pre-Greased: Just in case you forget, we have you covered.
  • Gull Winged Grease Grooves: Allows for improved lubrication disbursement around the ball stud.
  • Zerk Fittings: Included for every application.
SPECIAL FEATURES
  • Custom Features: UPPER: Custom Bearing design to eliminate Death Wobble.
  • Custom Features: LOWER: Angled Zerk housing for easier servicing.

Where It Fits:

Vehicle Position: Front Upper, Front Lower
Quantity per Vehicle: 1
Moog Interchange: K3134T & K3185
XRF Interchange: K3134TX & K3185

Installation Instructions

Customer Reviews

Based on 11 reviews
100%
(11)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
Jason Schueller (Minneapolis, US)
KIT 102 JK Wrangler Balljoints

These seem to be very well made, I love the lower joint design to keep clearance away from the axle shaft u joint….
The only issue I have is that these have been installed for 3 weeks and I have driven about 400 miles and the joints are SO STIFF that I have a hard time driving safely on the freeway and county roads.
I am assuming that this is because of the preload which in turn should mean that these joints will take a lot of abuse and last a long time before getting loose? Just a heads up that you should prepare for a lengthy break in period….which I have never experienced this much preload in a balljoint before. Usually within a couple days other brands settle in and it feels good, but I only got 30k miles each out of 2 other brand balljoints for my JK. So hopefully the tightness during break in is a good thing!

D
D Layton (Conroe, US)
BEEFY

Awesome quality

N
Nathan Chugg (Logan, US)
Excellent product with excellent service

I was impressed with the professional packaging until I installed everything. Then I was shocked at the quality and fitment. Top notch! Tight steering and solid balljoints for a firm and comfortable driving experience. Highly recommend to all!

S
Sam Williams (Kalispell, US)
HD ball joints

Best set of ball joints I’ve ever installed. Great product good service fast shipping. Apex chassis is awesome.

J
Jason White (Lake Wales, US)
Great customer service

Apex is great company deal with all the people are wonderful

Customer Reviews

Based on 11 reviews
100%
(11)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
Jason Schueller (Minneapolis, US)
KIT 102 JK Wrangler Balljoints

These seem to be very well made, I love the lower joint design to keep clearance away from the axle shaft u joint….
The only issue I have is that these have been installed for 3 weeks and I have driven about 400 miles and the joints are SO STIFF that I have a hard time driving safely on the freeway and county roads.
I am assuming that this is because of the preload which in turn should mean that these joints will take a lot of abuse and last a long time before getting loose? Just a heads up that you should prepare for a lengthy break in period….which I have never experienced this much preload in a balljoint before. Usually within a couple days other brands settle in and it feels good, but I only got 30k miles each out of 2 other brand balljoints for my JK. So hopefully the tightness during break in is a good thing!

D
D Layton (Conroe, US)
BEEFY

Awesome quality

N
Nathan Chugg (Logan, US)
Excellent product with excellent service

I was impressed with the professional packaging until I installed everything. Then I was shocked at the quality and fitment. Top notch! Tight steering and solid balljoints for a firm and comfortable driving experience. Highly recommend to all!

S
Sam Williams (Kalispell, US)
HD ball joints

Best set of ball joints I’ve ever installed. Great product good service fast shipping. Apex chassis is awesome.

J
Jason White (Lake Wales, US)
Great customer service

Apex is great company deal with all the people are wonderful

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