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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
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Hands down, best pee pad holder
Size: 18"X24"
I did so much research to find the right puppy pad holder. I would give this 10
stars if I could.
It’s softer plastic but not flimsy. The holes are comfortable for puppy feet. I see a lot
with metal grates and pictures of injured doggy feet. Our pups are small and they walk on it just fine. I used to go through 10 pee pads a day. Now one pad lasts all day. Pups can’t go wee wee and trail it all over the house. Since it’s the same pee pad, pups look for the smell and are motivated to pee pee in the same spot. Puppies used to wake up several times a night because they would pee, step in it, tear up the pee pad, make a mess. The night time drama has definitely decreased significantly.
Easy to lock, puppies can’t get into it. Easy to open to change out the pee pad. Comfortable to clean in a larger kitchen sink. Lightweight. Sometimes the doodie will go through the grates and sometimes it sits right on top, depending on the size of the doodie. Cleaning doodie stuck in the grate is never fun, but I use an old toothbrush and it works just fine.
Very happy with this item.
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Reviewed in the United States on January 29, 2026
★★★★★ 1
easily destructed by puppy that chews
Size: 24"X24"
disappointed in this purchase. It comes in 2 pieces, which are not exactly easy to fit together and cumbersome. This design flaw also makes it very easy for puppies who are prone to chewing to destroy. It last 1 day then i had to toss it
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Reviewed in the United States on January 29, 2026
★★★★★ 3
Great, for the most part
Size: 24"X24"
Love it overall and super glad I chose this one after looking at so many.
Pros:
- Perfect size for what I needed. Fits exactly in the space it was planned for
- Fits 22x22 pee pads nicely (which are easily accessible and cheaper than other sizes)
- the color is a brighter blie than I was expecting and shinier in person, which I like very much :)
Con:
I didn't realize that it's actually 4 pieces.
2 for the top, 2 for the bottom, and you have to put them together.
- I like the little weight distribution pieces they have so it keeps the top from sinking down onto the pee pad.
A few problems with that:
- I'm pretty great at putting together furniture, but for some reason one level connected fine and the other just would not go. I ended up using a flat head screwdriver to pry a piece out so it would go over the other. (If you buy it, you might understand what I mean better lol)
- with it coming in 4 pieces instead of two, it's less structurally sound and tends to bow in the middle. Even more so because they put both middles parallel instead if perpendicular.
- there are potty pads in there, but the seams create a more likely scenario of dripping onto my floor. Where I wouldn't have to worry about that with a solid piece.
- I may have to take the whole thing apart to clean between the individual pieces and this may cause it to be less secure over time due to taking apart and putting back together over time.
Great little thing overall and glad I got it :) serves it's purpose
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Reviewed in the United States on February 7, 2025
★★★★★ 5
Works Perfect!
Size: 24"X24"
Same scenario here as a lot of other reviewers... We've got a 10-week-old pup that used potty pads at first... But now is in the teething and let's tear everything up stage. It was starting to get dangerous even with other holders she was tearing up the pads completely and we were worried she was going to ingest them.
We looked at several different products, including the over twice the cost metal wolf brand. But I have to say, really glad we went with this one. It does take a minute to snap together properly, but once you do changing out pads is a breeze.
Once our girl (Mini Poodle) went on top of the greats and used the bathroom we gave her a big reward with lots of praise and a treat. She hasn't been able to tear it up at all. And I believe since she can smell her marking, she has been going back and using it about 7/10 times.
More recently, the success rate has been going up. Like I said, she hasn't been able to flip it over, break it apart etc. So we are incredibly happy with this purchase and has made our lives so much easier.
Once she gets bigger we will see how she handled it. And if she is able to break it apart. But I doubt it, there is a fairly satisfying click when you lock in both sides with the pad beneath.
We are using Frisco pads from Chewy large size and they fit pretty much perfectly. You have to fold the blue border slightly but it works great!
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Reviewed in the United States on November 3, 2024
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025