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Description
Jeep HD Knurled Front Ball Joint Set Dana 30/44 2 Uppers 2 Lowers Jeep JK/WJ Synergy MFGReplace your Jeep's factory ball joints with Synergy MFG's Dana 30 44 Heavy Duty Ball Joint Set. These ball joints employ a metal on metal design to improve durability and performance. A must for vehicles with lifts and larger tires. Get rid of that steering wander and play caused by loose or worn out ball joints. Fits: 07 18 Jeep Wrangler JK and Rubicon 07 18 Jeep Wrangler Unlimited JK and Rubicon 99 04 Jeep Grand Cherokee WJ Features: Compatible
Replace your Jeep's factory ball joints with Synergy MFG's Dana 30/44 Heavy Duty Ball Joint Set. These ball joints employ a metal on metal design to improve durability and performance. A must for vehicles with lifts and larger tires. Get rid of that steering wander and play caused by loose or worn out ball joints.
Fits:
- 07-18 Jeep Wrangler JK and Rubicon
- 07-18 Jeep Wrangler Unlimited JK and Rubicon
- 99-04 Jeep Grand Cherokee WJ
Features:
- Compatible with all aftermarket axle shafts (including RCV) with no modifications needed
- Fully Greasable 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 housing is manufactured from sintered graphite, bronze, and 1045 steel for a strong, smooth, bearing surface
- Ball joint stud is manufactured from induction heat treated 4140 steel for maximum strength and smooth operation
- Ball joint dust boot is made from wear/tear resistant black nitro-butile rubber (NBR)
- 12 Month Unlimited-Warranty (see warranty information)
- Synergy High Performance Grease (4119) 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 required when replacing knurled ball joints that have enlarged the axle end forging bores
- 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 warranty. It is up to the installer to verify the proper ball joint style is being used.
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
Great product
Thankyou love the 522ink works great on my crafting
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 5
Fast, reliable, economical, and versatile.
Style: ET-5150, Set: ET PRO FAX/ADF/PRINT/COPY/SCAN
Fast, reliable, economical, and versatile. I find wifi connections more reliable with this printer than my three other EPSON Ecotank printers, which is odd, but appreciated. It prints quickly and sips ink. It's a bit louder than my ET-5800, but not by much. Print jobs load quickly and print with gusto. I do wish it had borderless printing, but sadly it does not. The quality approaches my ET-5800 but is not quite as saturated, even though it uses the same exact ink. It's smaller than expected, and is easy to set up. Quite happy.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Easy setup and love that I don't need cartridges anymore!
Style: ET-5150, Set: ET PRO FAX/ADF/PRINT/COPY/SCAN
This printer was relatively easy to set up and connect to my home wifi network. I needed a reasonably priced, good quality all-in-one, for occasional use at home. This printer checked all the boxes. The scanning/copy feature works great, and the tank system is what sold me. I always hated inkjets because of the expensive cartridges, that never seemed to last very long. The tank/bottle system is very easy to use and much less expensive. The quality of print is very good, even for photos. The design is very space efficient. Recommended!
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Reviewed in the United States on March 30, 2026
★★★★★ 1
Piece of Junk
Style: ET-5150, Set: ET PRO FAX/ADF/PRINT/COPY/SCAN
This printer worked fine until about a week ago. It jammed six paper jambs in a row, and then it did not recognize the 8.5x11 paper that I had been using from day one. The copy feeder on top of the printer quit, and when it did work, it fed the copy in almost sideways. I have a box of ink for this copier, and I would like to shove it back to the supplier for the wonder piece BS equipment.
I have bought a black ink cartage for my nearly 8-year-old Brother Copier and my office is back in business.
Epson ECOTANK Pro ET-5150 is not ready for prime time by a cartage machine.
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Reviewed in the United States on November 10, 2024
★★★★★ 5
Great printer, save money on ink; Most issues are very easy to fix
Style: ET-5150, Set: ET PRO FAX/ADF/PRINT/COPY/SCAN
I convinced my boss to buy my first 5150 about 3 years ago and our second one earlier this year. I am happy with my purchase. I have barely had to swap out the maintenance box, and they are cheap anyways. The print quality is quite good, just need to run some cleaning protocols to fix most of them. We did have to open up a printer for some deeper cleaning but there were videos online to fix it.
The most common issue is paper jams, but I print a lot and its pretty rare if the paper isn't janky. You can also easily fix by pulling the printer forward and taking off a panel in the back to fish out paper.
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Reviewed in the United States on December 18, 2025