Synergy 4123KN Heavy-Duty Adjustable Ball Joint Kit (Knurled)
SKU: 78194173275

Synergy 4123KN Heavy-Duty Adjustable Ball Joint Kit (Knurled)

Sale price$202.50 Regular price$225.00
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Description

Synergy 4123KN Heavy-Duty Adjustable Ball Joint Kit (Knurled)Get the Synergy 4123KN Heavy Duty Adjustable Ball Joint Kit (Knurled) from GAP and upgrade your 2003 2013 Dodge Ram 2500 3500 4WD. After 5 years of development and over 100,000 test miles the Synergy Heavy Duty Adjustable Ram Ball Joints are here! This is the last set of ball joints you will ever have to buy. Tighten up your steering for good with Synergy's patent pending (# 16 020894) design which is fully adjustable, serviceable, and rebuildable

Get the Synergy 4123KN Heavy-Duty Adjustable Ball Joint Kit (Knurled) from GAP and upgrade your 2003-2013 Dodge Ram 2500/3500 4WD. After 5 years of development and over 100,000 test miles the Synergy Heavy-Duty Adjustable Ram Ball Joints are here! This is the last set of ball joints you will ever have to buy. Tighten up your steering for good with Synergy's 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. These ball joints never have to come back out. Lower ball joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized to make these the longest lasting, longest wearing ball joints on the market. Kit includes all 4 ball joints to service one truck and the adjuster tool for adjusting the preload on the lower ball joints.


Features:
Non-Knurled Ball Joint Housing
Contaminants And Eliminate Any Chance Of Tearing
Zerk-Fittings Included For Trouble-Free Maintenance
Lower Ball Joints Are Rebuildable On The Vehicle Without Removal
Hardened, And Ferritic Nitrocarburized For Extreme Wear Resistance
Lower Ball Joint Bearing Surfaces Are CNC Machined From 4140 Steel, Heat Treated, Induction
Low Profile Dust Boots Are Made From Thick Nitrobutile Rubber (NBR) To Protect The Joint From
Patent Pending Lower Ball Joints Are Adjustable So They Always Have The Correct Amount Of Preload

Benefits:
Tightens Sloppy Steering
Best In Class Price/Performance Ratio
Designed To Last The Life Of The Vehicle
Never Need To Replace Ball Joints Again
Limited Lifetime Warranty

4123KN Heavy-Duty Adjustable Ball Joint Kit 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

Notes:
Non-Knurled ball joints recommended for replacing non-knurled ball joints
Due to these ball joints being tight tolerance, metal on metal ball joints, proper fitment is critical. Using the wrong style of ball joints can cause significant steering issues. We always recommend installing non-knurled ball joints until non-knurled ball joints are no longer a press fit into the axle end forging bores. If your axle end forging bores have been enlarged to the point that non-knurled ball joints are no longer a press fit, knurled ball joints are required.
Use of the improper ball joint style for the axle housing voids our lifetime warranty. It is up to the installer to verify the proper ball joint style is being used.
Compatible with RCV axle shafts
Synergy 4119 High Performance Grease recommended
Limited Lifetime Warranty:
For the original purchaser, this warranty covers defects in materials or workmanship of the ball joint for the lifetime of the joint. Ball Joints are wear items and normal wear of the ball joint is not subject to this Limited Lifetime Warranty. The wear items of the ball joint will periodically need to be replaced once the adjustment in the joint is used up and are available separately as a ball joint rebuild kit. Length of time between rebuilds is subject to the use and build of the vehicle.

Applications:
2003-2013 Dodge Ram 2500 4WD
2003-2013.5 Dodge Ram 3500 4WD
2006-2008 Dodge Ram 1500 Mega Cab 4WD

Note: 2013 Dodge Ram 3500's were a split year for production. If your truck has radius arms use Dodge Ram 2014+ pages
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: 78194173275

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T W
Waukegan, US
★★★★★ 5
Dogs love balls
Color: Orange
Most dogs love to play with balls. This is a ball. It squeaks and can handle a lot of strong chewing. Quite durable and a good size for medium and up sized dogs. (Honestly even smaller dogs would have fun with this).
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Reviewed in the United States on April 23, 2026
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shaylynn filiault
West Palm Beach, US
★★★★★ 5
Good quality
Color: Green and Purple
Good quality and last long. Is loud wheen squeeks
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Reviewed in the United States on May 16, 2026
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Carrie
New York, US
★★★★★ 4
Heavy duty for sure
Color: Purple
Heavy duty toy. This ball has some weight to it! I have a smaller laber doodle that thinks she's a German Shepard so no toy is too big or heavy for her. She's been chewing on this for months but you'd never know it. The squeaker is even hard for me to activate with my hands. She hits it in the right spot every now and again and gets excited about it. Great if your not crazy about hearing a squeaker squeaking non stop!
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Reviewed in the United States on May 10, 2026
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Theresa Kellat Mcilraith
Fort Morgan, US
★★★★★ 5
All dog sizes can enjoy this ball!
Color: Orange
This is a terrific dog ball! Our Pittie can't tear it apart on day 2 which is unusual! Also, its big enough that he can't swallow it but not so huge that our mini Doodle can't enjoy it too! We have more than one of these to keep our pups busy!
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Reviewed in the United States on June 7, 2026
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Tanner Pence
Lexington, US
★★★★★ 5
Great quality
Color: Purple, Color: Purple
My dog loves to chew and this toy is indestructible! She loves it!
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Reviewed in the United States on June 10, 2026

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