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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
Best In Class Price/Performance Ratio
Designed To Last The Life Of The Vehicle
Never Need To Replace Ball Joints Again
Limited Lifetime Warranty
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 SteeringBest 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 jointsDue 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 4WD2003-2013.5 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:
- 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
4.5 ★★★★★
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Product Reviews
★★★★★ 5
High quality
Scent: Bright Coffee, Size: 4.06 Fl Oz (Pack of 1)
I’ve been very happy with this Batana Oil. It feels like a high-quality, 100% raw and natural product. Since adding it to my hair care routine, my hair has felt softer, more moisturized, and healthier overall. I’ve also noticed less breakage and improved manageability.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Batana Oil for Stronger, Fuller Hair
Scent: Bright Coffee, Size: 4.06 Fl Oz (Pack of 1)
I’ve been using this Batana Oil for a few weeks now, and I’m genuinely impressed with the results. From the very first use, my hair felt softer, more nourished, and noticeably healthier. The texture of the oil is rich but not overly heavy, which makes it easy to apply without weighing my hair down.
What I love most is how it helps with dryness and frizz. My ends look less damaged, and my hair has a natural shine that I didn’t have before. I’ve also noticed less breakage when brushing, which is a huge plus. It feels like my hair is getting stronger over time.
Another great thing is that a little goes a long way, so the jar lasts longer than expected. I like to use it as a scalp treatment and also as a leave-in on my ends, and it works perfectly both ways.
If you’re looking for something to improve the overall health, thickness, and appearance of your hair, this Batana Oil is definitely worth trying. It gives that “salon-quality” feel right at home.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Batana oil 100%
Scent: Bright Coffee, Size: 4.06 Fl Oz (Pack of 1)
I have been using this batana oil in my hair and I really liked it. Leaves hair soft, with more shine and a healthier appearance. It feels nutritious without the need to use large amounts. It also helps control frizz and leaves the hair manageable. With constant use I have noticed that my hair looks stronger and more hydrated. Very good value for money.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Hair Growth Game Changer
Scent: Bright Coffee, Size: 4.06 Fl Oz (Pack of 1), Scent: Bright Coffee, Size: 4.06 Fl Oz (Pack of 1)
Game-Changer for Hair Growth & Thickness
I am seriously impressed with this 100% raw organic Batana oil. I’ve tried so many hair growth products, and this is one of the few that actually delivers real results.
Within just a couple of weeks, I noticed my hair feeling softer, stronger, and way more hydrated. The biggest difference for me has been in thickness—my hair looks fuller, and I’m seeing new growth, especially around my hairline. It also adds a really healthy shine without making my hair feel greasy or weighed down.
I love that it’s all-natural and unprocessed—you can tell it’s the real deal. A little goes a long way, so the jar will last you a while. I use it a few times a week as a scalp treatment and even on my ends to prevent dryness.
If you’re struggling with thinning, breakage, or just want healthier, longer hair, I highly recommend giving this a try. Definitely a staple in my routine now!
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Reviewed in the United States on May 6, 2026
★★★★★ 4
This product is helping my afro hair truly thrive!
Scent: Bright Coffee, Size: 2 Fl Oz (Pack of 1)
I've used this product for 1 month so far. Applying to my scalp, hair and the ends of hair approx 1-2 times per week. These are my benefits on my long afro hair:
- First off, my scalp doesn't particularly like oil on it, it would trigger itching, dandruff, etc., but it certainly loves this stuff.
- bald spots started growing back in.
- drastic reduction in hair shed.
- For a long while, I had difficulty retaining hair moisture. My hair is FINALLY getting the nourishment and moisture it needs and deserves.
- hair is noticeably softer and even more manageable.
- I detangled my entire head within 15 minutes the other day which is a first for me.
- Hair is thickening. Which in my opinion is because my hair is shedding less. Like my braids appear half an inch thicker than they were.
- Scalp stopped itching.
- Dandruff stopped.
As far as the scent goes, it smells soo good to me. i read authentic batana oil is supposed to smell like burnt coffee. Maybe it's just me but it smells like caramelized honey.
All in all I'm soo happy i was guided to batana oil because it has done wonders for me in such a short period of time. Very happy with my purchase and would recommend.
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Reviewed in the United States on March 11, 2026