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Front End Parts Lexus LS400 #4479904
08/05/17 12:52 PM
08/05/17 12:52 PM
Joined: Sep 2002
Posts: 2,275
VA
Gebo Offline OP
Gebo  Offline OP
Joined: Sep 2002
Posts: 2,275
VA
Several years ago and old mechanic asked me if I had replaced my ???? on my front end. He said these wear out and make the front end loose and most people don't know to replace them. They were not very expensive and I don't think it affected the alignment. I'm thinking they are rubber????

He's no longer around to ask and I am wondering if any of you know what he was referring to. It wasn't ball joints or tie rod ends.

It was bout 120K miles ago and when he replace them my car's front end got very tight and had much greater steering response.


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 58K
Amsoil in all engines, transmissions and differentials

Re: Front End Parts Lexus LS400 [Re: Gebo] #4479933
08/05/17 01:28 PM
08/05/17 01:28 PM
Joined: Sep 2014
Posts: 1,422
Seattle-ish, WA
Oro_O Offline
Oro_O  Offline
Joined: Sep 2014
Posts: 1,422
Seattle-ish, WA
He was probably referring to sway bar bushings, which stabilize the sway bar to the frame mounts.


I doubt he meant control arm bushings, those are harder to change and don't wear that quickly. 150k would be about the wear point for sway bar bushings on the front on many vehicles. On my SUV, I replaced them with polyurethane ones to stiffen it, on the cars I just replace with rubber to keep it less harsh.



Last edited by Oro_O; 08/05/17 01:29 PM.
Re: Front End Parts Lexus LS400 [Re: Gebo] #4479947
08/05/17 01:44 PM
08/05/17 01:44 PM
Joined: Sep 2002
Posts: 2,275
VA
Gebo Offline OP
Gebo  Offline OP
Joined: Sep 2002
Posts: 2,275
VA
That's it! Sway bar bushings. Thank you.


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 58K
Amsoil in all engines, transmissions and differentials

Re: Front End Parts Lexus LS400 [Re: Gebo] #4480096
08/05/17 05:19 PM
08/05/17 05:19 PM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio


too many cars and oil combinations to list in 150 characters or less
Re: Front End Parts Lexus LS400 [Re: Gebo] #4480160
08/05/17 07:25 PM
08/05/17 07:25 PM
Joined: Sep 2002
Posts: 2,275
VA
Gebo Offline OP
Gebo  Offline OP
Joined: Sep 2002
Posts: 2,275
VA
Number 12

I don't know what 9 is?

Last edited by Gebo; 08/05/17 07:26 PM.

'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 58K
Amsoil in all engines, transmissions and differentials

Re: Front End Parts Lexus LS400 [Re: Gebo] #4480228
08/05/17 08:49 PM
08/05/17 08:49 PM
Joined: Sep 2014
Posts: 1,422
Seattle-ish, WA
Oro_O Offline
Oro_O  Offline
Joined: Sep 2014
Posts: 1,422
Seattle-ish, WA
9 and 10 are both control arms, with replaceable bushings a shown. They are a different design than the "A" arm you see for the upper (#3). 9 is for toe control. 10 is called the lateral control arm.

I made the assumption these had dual A arms and those bushings wear less. It would be worth inspecting those bushings on a car with 270k miles. There's also a bushing between 10 and the steering knuckle that is not shown, it's pressed into the knuckle and not visible.

Re: Front End Parts Lexus LS400 [Re: Gebo] #4480324
08/05/17 10:51 PM
08/05/17 10:51 PM
Joined: Oct 2011
Posts: 2,976
Chicago, IL
Brybo86 Offline
Brybo86  Offline
Joined: Oct 2011
Posts: 2,976
Chicago, IL
I think you are talking about the strut rod bushings

This is very Common google it and check clublexus/lexusownersclub


08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog
Re: Front End Parts Lexus LS400 [Re: Gebo] #4480345
08/05/17 11:23 PM
08/05/17 11:23 PM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio
Yeah Brybo it is gonna be the strut rod, probably not the sway bar bushings. Therefore, number nine on the link I posted above.
Sucks because the sway bar bushings are a cheap and easy way out. The strut rods are not. You gotta get the whole thing from Toyota and they ain't cheap. But they do wear out with alarming regularity. I'd say they are the only true wear item on an LS400!
FYI Lexus doesn't sell the bushing separate for the strut rod. Only the whole unit. You can get aftermarket bushings but .. it's an LS400 and they spent hundreds of millions to tune the suspension bushings of that car to make it feel the way it needs to feel.


too many cars and oil combinations to list in 150 characters or less
Re: Front End Parts Lexus LS400 [Re: Gebo] #4482780
08/08/17 02:10 PM
08/08/17 02:10 PM
Joined: Jan 2004
Posts: 4,155
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,155
California
Sway bar bushings - not a bad task to do on these.

Strut rod and control bushings are common things to replace on those older UCF10/20 cars - the LCAs can be a chore. I did the Daizen bushings on a 1991 LS400, it wasn't a fun task and the car wasn't Lexus quiet over the bumps once the lubricant washed off.

The strut rods do affect alignment on these cars - but if you get the control arm and strut rod bushing changed out you'll feel a world of difference but be prepared to lube the bushings with the most tenacious grease you can find every now and then.


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