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Vol. 143, No. 5 - Magazine
I enclose check money order for $4.49 postpaid for each set ordered. ... Conversely, with a tension-loaded ball joint, force on the joint works to pull fast ball joints by taking pressure off primary load-carrier, here the lower ball joint of a torsion-barsuspension system. ... 1 shows the coil spring on top of the lower control arm.
to remove lower control arm bushings you need to remove control arm from vechicle have control arm bushings pressed out.you need to remove disconnect torsion bar,remove shock absorber,disconnect stabilizer bar link, remove axle half shaft, remove the lower ball joint, remove control arm mounting bolts, then remove lower control arm.
You do not need to remove the torsion bar. just jack up the vehicle under the lower control arm. The shock will also keep the lower control arm from traveling to far.
If it has a torsion bar running through the lower control arm than it must have independent front suspension. Remove the caliper and bracket. The rotor should knock off but it can be left on. remove the axle nut. The drive axle should push through the hub. Some tapping with a hammer may be needed. Separate the upper and lower ball joints from the knuckle and remove the knuckle (you will be able to push the drive axle all the way through once the knuckle is free of the ball joints).
remove the snap ring from the lower ball joint and hit it out with a hammer. You will need a ball joint press to install the new ball joint.
Let me know if you have any questions. Thank you for using FixYa.com!
The front suspension allows each wheel to compensate for changes in the road surface without affecting the opposite wheel. Each wheel independently connects to the frame with a steering knuckle, ball joint assemblies, and upper and lower control arms.
The control arms specifically allow the steering knuckles to move in a three-dimensional arc. Two tie rods connect to steering arms on the knuckles and an intermediate rod. These operate the front wheels.
The two-wheel drive vehicles have coil chassis springs. These springs are mounted between the spring housings on the frame and the lower control arms. Double, direct acting shock absorbers are inside the coil springs. The coil springs attach to the lower control arms and offer ride control.
The upper part of each shock absorber extends through the upper control arm frame bracket. This bracket has two grommets, two grommet retainers, and a nut.
A spring stabilizer shaft controls the side roll of the front suspension. This shaft is mounted in rubber bushings that are held by brackets to the frame side rails. The ends of the stabilizer shaft connect to the lower control arms with link bolts. Rubber grommets isolate these link bolts. Rubber bushings attach the upper control arm to a cross shaft. Frame brackets bolt the cross shaft.
A ball joint assembly is riveted to the outer end of the upper control arm. A rubber spring in the control arm assures that the ball seats properly in the socket. A castellated nut and a cotter pin join the steering knuckle to the upper ball joint.
The inner ends of the lower control arm have pressed-in bushings. The bolts pass through the bushings and join the arm to the frame. The lower ball joint assembly is a press fit in the lower control arm and attaches to the steering knuckle with a castellated nut and a cotter pin.
Ball socket assemblies have rubber grease seals. These seals prevent entry of moisture and dirt and damage to the bearing surfaces.
Four-wheel drive models have a front suspension that consists of the control arms, a stabilizer bar, a shock absorber, and right and left torsion bars. The torsion bars replace the conventional coil springs. The lower control arm attaches to the front end of the torsion bar. The rear end of the torsion bar mounts on an adjustable arm at the crossmember. This arm adjustment controls the vehicle trim height.
Two-wheel drive vehicles have tapered roller sheel bearings. These bearings are adjustible and need lubrication.
Four-wheel drive models and RWD Utilities have sealed front-wheel bearings. These bearings are pre-adjusted and need no lubrication.
Heat treatment may create darkened areas on the bearing assembly. This discoloration does not signal a need for replacement.
Hope this helps?
Raise and support the vehicle with safety stands. Refer to Vehicle Lifting.
Remove the tire and the wheel. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
Unload the torsion bar. Refer to Torsion Bar and Support Assembly Replacement
Remove the wheel driveshaft nut and washer.
Disengage the wheel driveshaft from the wheel hub and bearing assembly. Place a brass drift against the outer end of the wheel driveshaft in order to protect the wheel driveshaft threads. Sharply strike the brass drift with a hammer. Do not attempt to remove the wheel driveshaft from the wheel hub and bearing assembly at this time.
Remove the stabilizer shaft. Refer to Stabilizer Shaft Replacement (RWD) or Stabilizer Shaft Replacement (4WD).
Remove the shock absorber. Refer to Shock Absorber Replacement (RWD) or Shock Absorber Replacement (4WD).
Remove the nuts and bolts securing the lower control arm to the crossmember and the frame bracket.
Remove the lower ball joint stud from the steering knuckle. Refer to Lower Ball Joint Replacement (RWD) or Lower Ball Joint Replacement (4WD).
Remove the lower control arm from the frame.
have fun and be careful wear always lens and gloves
Disconnect the caliper and mount, and hang it aside. Unbolt the 5 or 6, 6mm allen head bolts from the hub. Pull the hub out and remove the snap ring and washers behind it. Loosen the upper ball joint nut a little and break the joint free. Support the lower control arm with a jack and loosen the lower ball joint nut and break it loose also. With the lower control arm supported, remove the upper ball joint nut and slowly remove the lower control arm support (jack). The shock will retain the torsion bar and you can now remove the lower ball joint nut and slide the knuckle off the ball joint. You will be able to move the knuckle and axle around enough to give you access to the four bolts securing the ball joint
Your going to have some tension on the lower control arm, so be aware if the danger. When i replaced the ball joints on my Jimmy, i had it up on a stand and then placed the jack under the control arm to support it so i can let it down slowly.
Once the new ball joint is in place, i used the jack to bring up the control arm again to line it up with the spindle to put the front suspension together again.
Thank you for using Fixya and be safe.
First you would start off by unloading the ball joint by jacking up the lower control arm to see if there is indeed tire play indicating bad ball joints, raise the bottom of the tire with a pry bar and see the amount of play that you have thru the ball joint. You can also see if ball joints are bad by looking at the grease zerk on the bottom...BAD ball joints will have the zerk base level with the control arm...There should be atleast .050" sticking out To take apart mark and count the torsion bars. Undo the torsion bars. Remove all components in the way such as your brakes calipers (tie them up so you dont ruin the brake hoses), rotors, 4 wheel drive. Remove the steering knuckle. Check your spindle and bearings while you are in there to see about wear and such. Several ways to get the rivits out...Drill out the center of the rivit...take a dye grinder and cut a X in the head of the rivit and knock out with a hand chissel...or use the tourch (becareful due to the fact of ruining the control arms)...or use an air chissel (cutting an X in the rivit head will aid in removal. Replace with high tension bolts upwards as of grade 8 and use teflon nut with some locktight. Replace steering knuckle and the rest of the components removed in the disassembly. Tighten torsion bars to previous spec. Take vehicle in for an alignment due to having fresh ball joints in. No need ruining new ball joints after vehicle was used to driving with loose ones in
Inspect lower ball joint boots and seals for damage and replace if required. Lower ball joint and seal is part of front suspension lower arm and must be replaced as an assembly.
NOTE: Do not tighten the front suspension lower arm bolts and nuts to the specified torque until the end of assembly. Install nuts and tighten until snug.
Position the front suspension lower arm in the front crossmember. Install the bolts. Install the nuts and tighten until snug.
Install torsion bar. Refer to Torsion Bar in this section.
Raise the front suspension lower arm to allow installation of front suspension lower arm ball joint into spindle bore.
Lower front suspension lower arm with a jack while making sure lower ball joint is seated in spindle bore. Install the lower ball joint attaching nut and tighten to 113-153 Nm (82-113 lb-ft). Install a new cotter pin.
Raise vehicle. Position the front shock absorber and install the nut/washer/bushing assembly. Tighten nut to 40-55 Nm (30-40 lb-ft).
Install the two nuts attaching the front shock absorber to the lower control arm and tighten to 21-29 Nm (15-21 lb-ft).
NOTE: Front suspension lower arms must be in the horizontal or curb position (vehicle on the ground) when tightening the front stabilizer bar link bolts. Use jackstands to raise the front suspension lower arms to the horizontal position or lower the vehicle to the ground (curb position).
Lower the vehicle to the ground.
Connect the stabilizer bar link bolt to the front suspension lower arm and tighten to 13-17 Nm (10-13 lb-ft).
Tighten nuts and front suspension lower arm bolts to the No. 1 crossmember to 150-200 Nm (111-148 lb-ft).
Check ride height and align as necessary. Refer to Section 04-00 .
They are riveted into the lower control arm. You can chisel them out OR...if u have air tools...u can grind the rivets off, them punch them thru the bottom of the lower control arm. Make sure you place GOOD, STRONG jackstands under the control arm. I believe that is a torsion bar suspension so be very careful. You'll also need to pop the upper ball joint out of the spindle to change the lower ball joint. Good luck.