SKU: 58529470257

Jeep Wrangler JK/Grand Cherokee WJ HD Non-Knurled Adjustable Ball Joint Kit (SYN4127)

Sale price$244.80 Regular price$272.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

Jeep Wrangler JK/Grand Cherokee WJ HD Non-Knurled Adjustable Ball Joint Kit (SYN4127)Description Our Synergy Jeep JK JKU Adjustable Ball Joint Kit has endured over 5 years of development and over 500,000 test miles! This is the last set of ball joints you will ever have to buy with a Limited Lifetime Warranty. Tighten up your steering for good with our patent pending (# 16 020894) design which is fully adjustable, serviceable, and rebuildable without having to press the ball joints back out of the axle end forging yokes (C's). These

Description

Our Synergy Jeep JK / JKU Adjustable Ball Joint Kit has endured over 5 years of development and over 500,000 test miles! This is the last set of ball joints you will ever have to buy with a Limited Lifetime Warranty. Tighten up your steering for good with our patent-pending (# 16/020894) design which is fully adjustable, serviceable, and rebuildable without having to press the ball joints back out of the axle end forging yokes (C's). These ball joints never have to come back out.

Features
  • Fully adjustable and rebuildable lowers are designed to last the life of the vehicle, without ever having to press them out of the inner-c
  • On and off road tested for more than 5 years and 500,000 miles providing time tested components you can trust
  • Best in class price to performance ratio
  • Compatible with all aftermarket axle shafts (including RCV's) with no modifications needed
  • Fully greaseable metal on metal ball Joint bearing surface has considerably larger area than stock due to elimination of the inner nylon liner for a longer lasting joint
  • Heavy duty, heat treated stud prevents unwanted movement and premature failure
  • Improves road manners and corrects sloppy steering
  • Patent Pending Lower Ball Joints are adjustable and rebuildable so they always have the correct amount of preload
  • Knurled and non-knurled ball joint housing options to fit any vehicle
  • CNC machined lower ball joint surfaces from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
  • Heavy duty, extra large 4140 steel stud for maximum strength and reliability
  • Low profile dust boots are made from thick nitrobutile rubber (NBR) protect the joint from contaminants and eliminate any chance of tearing
  • Limited Lifetime Warranty
  • Zerk fittings included for trouble-free maintenance
Includes
  • (2) Upper Ball Joints
  • (2) Lower Adjustable Ball Joints
  • (1) Ball Joint Hardware Kit for all joints
  • (1) Ball Joint Adjuster Wrench to set pre-load
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58529470257

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4.1 ★★★★★
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Verified Purchase
Fiona
Whiting, US
★★★★★ 5
I love it so cute
Color: Beige, Color: Beige
Easy to install, convenient to use, and the color is really nice too. The size is just what I needed, I love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
V
Verified Purchase
victoria caraveo
Birmingham, US
★★★★★ 1
Cheap product!! Not recommended!
Color: Beige
Do not recommend!! If I could give it zero stars I would. This is made of the cheapest material, once you assemble it the tiers don’t stop spinning , even after screwing the screw at the tightest possible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
T
Verified Purchase
Tillymay
Charlottesville, US
★★★★★ 5
Nice quality
Color: Beige
Very nice quality,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
M
Verified Purchase
Meghan Howell
Chelsea, US
★★★★★ 2
Screws don’t fit
Color: Beige
Looks beautiful but came with a deficient screw. Screw doesn’t fit and thus can not complete building.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
R
Verified Purchase
Rob W.
Dallas, US
★★★★★ 5
Great for organizing
Color: Black3pro
Arrived as scheduled. Just as pictured. I'm happy with my order. They Do Require full contact to support weight. Panels with bends cut down on what they hold ( slide down under load) I put a piece of tape below the magnet & it stopped the slide. They work great for my smaller shovels & tools.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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