Hello All CL members..

My car is a1999 Gs400 with 143K miles. I just bought this car 3wks ago. Yesterday I was doing some works(I'm an amateur, I've learned most of the DYI rite here on this CL forum from experienced members that are sharing their knowledge with ppl like me. Thank u all very much). While BOTH of the front wheels were jacked, I did the 12-6 position trying to check for bad bearings but while I was pulling, pushing the wheels with my hands on 12-6 position, BOTH of those wheels move, at the sme time, the upper control arm wiggles a little bit(I believe the knuckle where the rubber bushing is).. Any CL memeber have experience with this issue and wnn share is greatly appreciated.

 

If its loose, replace it. I had to replace mine about 2 months ago.

 

=ThomasGS4;7174487]If its loose, replace it. I had to replace mine about 2 months ago.

The probable cause is most likely the the upper control arm or maybe wheel bearing?
I'm just a learner..
Thank u very much for ur input ThomasGS4

 

also check lower ball joints
mine had 115k at the time that i had to replace one upper control arm and both lower ball joints

 

Chicov8.. I have just finished reading a thread regarding about ball joints. I'll def look into those BJ ..
Thanks for ur suggestion tho'

 

Did u do it ur self or u had the mechanic did it? How much were the parts for those jobs and labor for the jobs?
Thanks in advance

 

I redid the whole front end on my car with all oem parts and not even 2 weeks after the lower ball joints went again thank god they didnt break
But i have heard our cars are notorious for lower ball joint problems so good luck

 

How much were the upper/lower Ball joints on both side? I called a couple Lexus dealers and they want $116 a peace. I was looking online for the Moog brand from Federal Mogul ones and they are cheaper. Any experience with Moog ball joints?

Did u say after 2 wks replacing them, ur ball joint went out on u?

 

My mistake originally was i did the front end thefirsttime trying to save money using "egay"parts and i got burnedthats when the lbj went out then i redid them using all oem parts and i have the paper work in hand the lbjs were 140 a pc through bay ridge lexus and the upper control arms were 350 a pc ( come with balljoints) but i did use moog for the links , bushing kit and rack n pinion bushing kit and im using kyb gr2 shocks stock springs

Dnt evr use ebay parts i learned the hardway .......at least my experience with them

 

i just redid upper/lower control arms, LBJ, inner/outer tie rods. WOOT! car feels super smooth.

 

register at sewell lexus and lower ball joints are $63 a piece

 

I did my whole front end with moog parts except for the upper control arms. Moog are quality parts and i have 16k on them so far with 22" wheels on my ride for maybe 4k miles of that 16k. So far so good.

OP...if you notice play at the 12+6 position and can visually see that there is play at the spindle arm and control arm, then replace the upper control arm. I had that same issue and a new upper control arm fixed it.

 

Thank u all CL members for the valuable info

 

Just did my passenger side with Detroit Axel. Replacement looked very solid and so far with 100 miles the car drives fantastic. No more squeaks