SET YOUR VEHICLE
FREE SHIPPING ON ORDERS OVER $70!
Order Now, Pay Later
TALK TO A PARTS EXPERT
LOWEST PRICE
Guaranteed
Product images
Product Media
Synergy Manufacturing HD Knurled Ball Joint Set - JT/JL
Synergy Manufacturing HD Knurled Ball Joint Set - JT/JL

Synergy Manufacturing HD Knurled Ball Joint Set

JT/JL

Write a Review | Q&A
Part # 4170-12We price match! Call 866-601-5340!
$300.00

Out of Stock. Average time to ship: 30 days
You will earn Reward Points with this Purchase.
ANY QUESTIONS?

Features & Product Details

Replace your Jeep JL / JLU Wrangler or JT Gladiator's factory ball joints with Synergy MFG's NEW Heavy Duty Ball Joint kit. These ball joints use a metal on metal bearing design, unlike the factory (plastic nylon bearing design), to improve durability and performance. A must for vehicles with lifts and larger tires that see off road use. Get rid of that steering wander and play caused by loose or worn out ball joints. While Jeep may have updated the JL / JLU and JT steering knuckle to use a dual load bearing upper and lower ball joint, they still kept the problematic nylon inner liner which is prone to premature wear. Our Heavy Duty Ball Joints feature the latest design used in our other ball joint applications with our proven design that are sure to stand the test of time.


Features:

  • Compatible with all aftermarket axle shafts (including RCV's) with no modifications needed
  • Fully greaseable metal on metal design for prolonged life
  • Ball Joint bearing surface area is considerably larger than stock due to elimination of the inner nylon liner for a longer lasting joint
  • Ball joint bearing race is manufactured from sintered graphite & oil impregnated bronze for a strong, smooth, bearing surface
  • Ball joint housing is manufactured from 1045 high carbon alloy steel for a strong, smooth, bearing surface
  • Ball joint stud is manufactured from induction heat treated 4140 Chromoly steel for maximum strength & reliability
  • Ball joint dust boots are made from an industrial grade, wear/tear resistant black nitro-butyl rubber (NBR)
  • Synergy High Performance Grease recommended
  • Notes:

  • Metal on metal ball joints require a small break-in period of typically 100-500 miles to fully "seat" the bearing surfaces. During this time the steering may feel "sticky" or slow to "return to center". Once broken in, the steering will be smooth and tight.
  • Knurled ball joints are required when replacing ball joints that have enlarged the axle end forging bores
  • It is up to the installer to verify the proper ball joint style is being used
  • Part Number 4170-12 Includes (2) 4170-04
  • Product Video

    Specifications

    Brand: Synergy Manufacturing
    Greaseable: Yes
    Qty: 1 Kit
    Mfgr. Warranty: 1 Year Warranty
    Condition: New Product
    Return Policy:
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    Be the first to write a review

    QUESTIONS & ANSWERS

    No questions have been asked about this product.

    This Part Fits

    Jeep Wrangler JL
    Freedom
    2023 Jeep Wrangler JL Freedom
    Freedom I4 Turbo
    2023 Jeep Wrangler JL Freedom I4 Turbo
    Rubicon
    2018 Jeep Wrangler JL Rubicon
    2019 Jeep Wrangler JL Rubicon
    2020 Jeep Wrangler JL Rubicon
    2021 Jeep Wrangler JL Rubicon
    2022 Jeep Wrangler JL Rubicon
    2023 Jeep Wrangler JL Rubicon
    2024 Jeep Wrangler JL Rubicon
    Rubicon I4 Turbo
    2018 Jeep Wrangler JL Rubicon I4 Turbo
    2019 Jeep Wrangler JL Rubicon I4 Turbo
    2020 Jeep Wrangler JL Rubicon I4 Turbo
    2021 Jeep Wrangler JL Rubicon I4 Turbo
    2022 Jeep Wrangler JL Rubicon I4 Turbo
    2023 Jeep Wrangler JL Rubicon I4 Turbo
    2024 Jeep Wrangler JL Rubicon I4 Turbo
    Rubicon X
    2024 Jeep Wrangler JL Rubicon X
    Rubicon X I4 Turbo
    2024 Jeep Wrangler JL Rubicon X I4 Turbo
    Sport
    2018 Jeep Wrangler JL Sport
    2019 Jeep Wrangler JL Sport
    2020 Jeep Wrangler JL Sport
    2021 Jeep Wrangler JL Sport
    2022 Jeep Wrangler JL Sport
    2023 Jeep Wrangler JL Sport
    2024 Jeep Wrangler JL Sport
    Sport I4 Turbo
    2018 Jeep Wrangler JL Sport I4 Turbo
    2019 Jeep Wrangler JL Sport I4 Turbo
    2020 Jeep Wrangler JL Sport I4 Turbo
    2021 Jeep Wrangler JL Sport I4 Turbo
    2022 Jeep Wrangler JL Sport I4 Turbo
    2023 Jeep Wrangler JL Sport I4 Turbo
    2024 Jeep Wrangler JL Sport I4 Turbo
    Sport S
    2018 Jeep Wrangler JL Sport S
    2019 Jeep Wrangler JL Sport S
    2020 Jeep Wrangler JL Sport S
    2021 Jeep Wrangler JL Sport S
    2022 Jeep Wrangler JL Sport S
    2023 Jeep Wrangler JL Sport S
    2024 Jeep Wrangler JL Sport S
    Sport S I4 Turbo
    2018 Jeep Wrangler JL Sport S I4 Turbo
    2019 Jeep Wrangler JL Sport S I4 Turbo
    2020 Jeep Wrangler JL Sport S I4 Turbo
    2021 Jeep Wrangler JL Sport S I4 Turbo
    2022 Jeep Wrangler JL Sport S I4 Turbo
    2023 Jeep Wrangler JL Sport S I4 Turbo
    2024 Jeep Wrangler JL Sport S I4 Turbo
    Unlimited Freedom
    2023 Jeep Wrangler JL Unlimited Freedom
    Unlimited Freedom I4 Turbo
    2023 Jeep Wrangler JL Unlimited Freedom I4 Turbo
    Unlimited High Altitude
    2022 Jeep Wrangler JL Unlimited High Altitude
    2023 Jeep Wrangler JL Unlimited High Altitude
    Unlimited High Altitude I4 Turbo
    2022 Jeep Wrangler JL Unlimited High Altitude I4 Turbo
    2023 Jeep Wrangler JL Unlimited High Altitude I4 Turbo
    Unlimited Rubicon
    2018 Jeep Wrangler JL Unlimited Rubicon
    2019 Jeep Wrangler JL Unlimited Rubicon
    2020 Jeep Wrangler JL Unlimited Rubicon
    2021 Jeep Wrangler JL Unlimited Rubicon
    2022 Jeep Wrangler JL Unlimited Rubicon
    2023 Jeep Wrangler JL Unlimited Rubicon
    2024 Jeep Wrangler JL Unlimited Rubicon
    Unlimited Rubicon 392
    2021 Jeep Wrangler JL Unlimited Rubicon 392
    2022 Jeep Wrangler JL Unlimited Rubicon 392
    2023 Jeep Wrangler JL Unlimited Rubicon 392
    2024 Jeep Wrangler JL Unlimited Rubicon 392
    Unlimited Rubicon I4 Turbo
    2018 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    2019 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    2020 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    2021 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    2022 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    2023 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    2024 Jeep Wrangler JL Unlimited Rubicon I4 Turbo
    Unlimited Rubicon X
    2024 Jeep Wrangler JL Unlimited Rubicon X
    Unlimited Rubicon X I4 Turbo
    2024 Jeep Wrangler JL Unlimited Rubicon X I4 Turbo
    Unlimited Sahara
    2018 Jeep Wrangler JL Unlimited Sahara
    2019 Jeep Wrangler JL Unlimited Sahara
    2020 Jeep Wrangler JL Unlimited Sahara
    2021 Jeep Wrangler JL Unlimited Sahara
    2022 Jeep Wrangler JL Unlimited Sahara
    2023 Jeep Wrangler JL Unlimited Sahara
    2024 Jeep Wrangler JL Unlimited Sahara
    Unlimited Sahara Altitude
    2022 Jeep Wrangler JL Unlimited Sahara Altitude
    2023 Jeep Wrangler JL Unlimited Sahara Altitude
    Unlimited Sahara Altitude I4 Turbo
    2022 Jeep Wrangler JL Unlimited Sahara Altitude I4 Turbo
    2023 Jeep Wrangler JL Unlimited Sahara Altitude I4 Turbo
    Unlimited Sahara I4 Turbo
    2018 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    2019 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    2020 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    2021 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    2022 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    2023 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    2024 Jeep Wrangler JL Unlimited Sahara I4 Turbo
    Unlimited Sport
    2018 Jeep Wrangler JL Unlimited Sport
    2019 Jeep Wrangler JL Unlimited Sport
    2020 Jeep Wrangler JL Unlimited Sport
    2021 Jeep Wrangler JL Unlimited Sport
    2022 Jeep Wrangler JL Unlimited Sport
    2023 Jeep Wrangler JL Unlimited Sport
    2024 Jeep Wrangler JL Unlimited Sport
    Unlimited Sport Altitude
    2022 Jeep Wrangler JL Unlimited Sport Altitude
    2023 Jeep Wrangler JL Unlimited Sport Altitude
    Unlimited Sport Altitude I4 Turbo
    2022 Jeep Wrangler JL Unlimited Sport Altitude I4 Turbo
    2023 Jeep Wrangler JL Unlimited Sport Altitude I4 Turbo
    Unlimited Sport I4 Turbo
    2018 Jeep Wrangler JL Unlimited Sport I4 Turbo
    2019 Jeep Wrangler JL Unlimited Sport I4 Turbo
    2020 Jeep Wrangler JL Unlimited Sport I4 Turbo
    2021 Jeep Wrangler JL Unlimited Sport I4 Turbo
    2022 Jeep Wrangler JL Unlimited Sport I4 Turbo
    2023 Jeep Wrangler JL Unlimited Sport I4 Turbo
    2024 Jeep Wrangler JL Unlimited Sport I4 Turbo
    Unlimited Sport S
    2018 Jeep Wrangler JL Unlimited Sport S
    2019 Jeep Wrangler JL Unlimited Sport S
    2020 Jeep Wrangler JL Unlimited Sport S
    2021 Jeep Wrangler JL Unlimited Sport S
    2022 Jeep Wrangler JL Unlimited Sport S
    2023 Jeep Wrangler JL Unlimited Sport S
    2024 Jeep Wrangler JL Unlimited Sport S
    Unlimited Sport S I4 Turbo
    2018 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    2019 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    2020 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    2021 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    2022 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    2023 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    2024 Jeep Wrangler JL Unlimited Sport S I4 Turbo
    Unlimited Willys
    2022 Jeep Wrangler JL Unlimited Willys
    2023 Jeep Wrangler JL Unlimited Willys
    2024 Jeep Wrangler JL Unlimited Willys
    Unlimited Willys I4 Turbo
    2022 Jeep Wrangler JL Unlimited Willys I4 Turbo
    2023 Jeep Wrangler JL Unlimited Willys I4 Turbo
    2024 Jeep Wrangler JL Unlimited Willys I4 Turbo
    Unlimited Willys Sport
    2022 Jeep Wrangler JL Unlimited Willys Sport
    2023 Jeep Wrangler JL Unlimited Willys Sport
    Unlimited Willys Sport I4 Turbo
    2022 Jeep Wrangler JL Unlimited Willys Sport I4 Turbo
    2023 Jeep Wrangler JL Unlimited Willys Sport I4 Turbo
    Willys
    2022 Jeep Wrangler JL Willys
    2023 Jeep Wrangler JL Willys
    2024 Jeep Wrangler JL Willys
    Willys I4 Turbo
    2022 Jeep Wrangler JL Willys I4 Turbo
    2023 Jeep Wrangler JL Willys I4 Turbo
    2024 Jeep Wrangler JL Willys I4 Turbo
    Willys Sport
    2022 Jeep Wrangler JL Willys Sport
    2023 Jeep Wrangler JL Willys Sport
    Willys Sport I4 Turbo
    2022 Jeep Wrangler JL Willys Sport I4 Turbo
    2023 Jeep Wrangler JL Willys Sport I4 Turbo