Jeep HD Non-Knurled Front Ball Joint Set Dana 30/44 1 Upper 1 Lower Jeep TJ/TJL/YJ/XJ/ZJ Synergy MFG

$137.03 CAD

Ships within 24-48 hours. Pickup available upon request.
SKU: 4140-6004-FSVG Categories: , , ,

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.


  • 97-06 Wrangler TJ and 04-06 Wrangler Unlimited TJL
  • 90-95 Wrangler YJ
  • 90-01 Cherokee XJ
  • 90-92 Comanche MJ
  • 93-98 Grand Cherokee ZJ


  • 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


  • 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.

Additional information

Weight 2.72 lbs
Dimensions 5.00 x 5.00 x 4.00 in
Country of Origin






Harmonized Tariff Code


Warranty 1 Year Unlimited
Make From Year To Year Model Sub
Jeep 1984 1993 Cherokee -
Jeep 1985 1990 Cherokee Pioneer
Jeep 1985 1992 Cherokee Laredo
Jeep 1985 1988 Cherokee Chief
Jeep 1987 1993 Wrangler -
Jeep 1987 1988 Wrangler Sport
Jeep 1987 1992 Cherokee Limited
Jeep 1987 1990 Wrangler Laredo
Jeep 1988 1995 Wrangler Sahara
Jeep 1988 1988 Wrangler S
Jeep 1988 1992 Wrangler Islander
Jeep 1989 2001 Cherokee Sport
Jeep 1991 1992 Cherokee Briarwood
Jeep 1991 1994 Wrangler S
Jeep 1991 1994 Wrangler Renegade
Jeep 1993 1997 Cherokee Country
Jeep 1993 1998 Grand Cherokee Limited
Jeep 1993 1993 Grand Cherokee -
Jeep 1993 1998 Grand Cherokee Laredo
Jeep 1994 1995 Wrangler SE
Jeep 1994 1995 Grand Cherokee SE
Jeep 1994 2001 Cherokee SE
Jeep 1995 1995 Wrangler Rio Grande
Jeep 1995 1995 Grand Cherokee Orvis
Jeep 1996 1996 Cherokee Classic
Jeep 1997 2006 Wrangler Sport
Jeep 1997 1997 Grand Cherokee Orvis
Jeep 1997 2004 Wrangler Sahara
Jeep 1997 1998 Grand Cherokee TSi
Jeep 1997 2006 Wrangler SE
Jeep 1998 1998 Grand Cherokee 5.9 Limited
Jeep 1998 2001 Cherokee Limited
Jeep 1998 2001 Cherokee Classic
Jeep 2002 2006 Wrangler X
Jeep 2003 2006 Wrangler Rubicon
Jeep 2004 2006 Wrangler Unlimited
Jeep 2005 2006 Wrangler Unlimited Rubicon
Jeep 2006 2006 Wrangler 65th Anniversary Edition


There are no reviews yet.

Be the first to review “Jeep HD Non-Knurled Front Ball Joint Set Dana 30/44 1 Upper 1 Lower Jeep TJ/TJL/YJ/XJ/ZJ Synergy MFG”

Your email address will not be published. Required fields are marked *