2000 Grand Cherokee Upper Ball Joint
Illustration of control arm:
The wishbone part, number 12, is the control arm. In the two ends, left side of picture, are the two bushings. These are pressed in bushings.
The rubber bushings, with their bonded steel shells, are separate parts, the part number for the (2) bushings are: 52088425
These bushings normally won't be damaged, but, in my case, due to extensive towing of a heavy trailer, these bushings had tears in the rubber bonding between the shell and the central spindle. These tears caused by the trailer snatching the frame around (trailer hitch is frame mounted) while the differential is essentially connected to the earth, through the tire rubber, and to the frame, through the ball joint and arm rubber bushings.
You can easily view the condition of the rubber simply by rolling under the vehicle with a flashlight, and looking. The bolts are vertical, right up through the bushing spindle, into the frame.
The bolts through the bushing spindle mount the arm to the frame.
The ball joint, at the apex of the arm, is number 8, and is Jeep part number 52088808AB.
This ball joint is an assembly which also includes the mounting flange plate. This plate bolts atop the differential housing with three bolts. The ball joint pin protrudes through the hole in the apex of the arms, and is secured by a nut, item 11, Jeep part number 06502698
Again, don't replace the bushings unless you see visible tears in the rubber web, or rotted, aged, cracked out webbing.
One more thing to note if you take down the arm... the emergency brake cables and brake lines are secured to the arm with small metal clips and bolts. Minor point here is when you reattach these bolts, don't crank down on them more than about 12 ft lbs torque, as these bolts go into the sheet metal wall of the arm, and there's no need to try to strip out these threads... Just secure them a bit, not to tank down on them.
Oct 06, 2008 |
2000 Jeep Grand Cherokee