We only have 2 balls left. Do you make replacement balls?

IF NOT TRY SWAY BAR BUSHINGS

replace left front lower arm ball joint Anon, Link shows how to replace lower ball joint it is a Lexus, pretty much identical to your lower suspension. Check the attached links,instruction and guides, Good luck
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How To Replace Front Lower Ball Joint
http://z4.invisionfree.com/lexusaltezzaclub/ar/t9466.htm
Moog Balljoint amazon review Lexus IS300
2001 Toyota Altezza lower ball joint Google Search

Many other users are noticing problem issue with ball joints.Always replace original parts instead of aftermarket parts.They dont last long.--------Before replacing ball joints ,i suggest to test and inspect the ball joints:----Click the link below for its procedure:----Upper Ball Joints inspection and replacement? http://howtobyme.blogspot.in/2012/02/upper-ball-joints-inspection-and.html How to Test Upper and Lower Ball Joint? http://repairhelpcenter.blogspot.com/2011/12/how-to-test-lower-ball-joint.html How to inspect Upper and Lower Ball joint? http://repairhelpcenter.blogspot.com/2011/12/how-to-inspect-lower-ball-joint.html How to Service Ball Joints on Car? http://repairhelpcenter.blogspot.com/2011/12/how-to-service-lower-ball-joints-on-car.html How to Replace Ball joints? http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-lower-ball-joints.html Lower Ball Joints replacing on Mitsubishi car? http://howtobyme.blogspot.in/2012/02/lower-ball-joints-replacing-on.html
--------This will help.Thanks.

When you say I, do you mean you? Upper ball joint,
you had to replace the control arm. Lower ball joint,
you remove the steering knuckle and have a machine
shop replace the ball joint. I would back track and make
sure no bushings or bolts are missing and all is tight.
Of course there is always the possibility the ball joint
replaced is defective. If you personally didn't replace
the joint-take it back. Sounds dangerous.

Output shaft? thats got nothing to do with a ball joint. replace both ball joints and get the alignment checked.

If it's the upper ball joint, just the ball joint can be replace, but if it's the lower ball joint the complete lower control arm will have to be replace, arm will come with new ball joint and bushings.

Have you removed the ball at any time? If it is put back in wrong, it could cause this. If not, the ball assembly itself might be bad. You can find them fairly cheap on eBay.

Jack the car up, pull the wheel, take off the brake caliper and the rotor. Take both ball joint nuts off. Take one tie -rod end nut off. You need a ball joint separator tool and a sledge hammer. Inspect your ball joints and tie rod end while your at it. It's about a 2 hour job or so. Good luck! Phil

Jack up the affected side and support vehicle on stands.

Remove nut that fastens onto affected ball joint;
Using a "pickle fork" (ball joint separator) hammer fork in between ball joint. Use at least a 5 Lbs. mallet to strike fork;
(Above: Blue wire is holding rotor assembly from flailing away after ball joint separation).

Using ball joint extractor, press out failed ball joint:



Then fit in new ball joint and reassemble rotor assembly.