2004 lc suspension shot , weird shaking at low rpm , and in the steering wheel (1 Viewer)

[tklein]

hi there guys, first let me say ia am a long time lurker , there is amazing wisdom on these forums. second i know the lc isnt perfect, but i love mine, about to buy another car for better mpg and to run the kids to soccer, and of course grocery shopping..... i reallly like doing the shopping then i get what i like to eat.....

anyway this is going to be a long post, well maybe not as i have seen some dozies on here... First off my suspension is shot, its not bad its shot. 2004 lc pretty stock, with 138k miles probably never changed, thing floats like a boat on the open seas.... going 70 on the highway is scary. when i am going slow - say 25 mph and rpm are between 1000 - 1400 i get this shake that seems to be in the front end , is this due to suspension? it really seems to just shake the whole front end. Further more, when going 70 the whole truck shakes when hitting bumps as well as loud clanking in the front end.... thing is a very heavy unsafe boat right now. i want to rebase the suspension, i would really be appreciative of any one that can give me guidance/help .... these are the parts i am planning on replacing:

ReBase Suspension:

Front Stabilizer Bar & Components

Stabilizer Bar Bushing 48815-60111
Stabilizer Bar Bushing 48815-60111
Stabilizer Link 48820-60032
Stabilizer Link 48820-60032
Stabilizer Link Cushion 90948-01003
Stabilizer Link Cushion 90948-01003
Stabilizer Link Retainer 90948-02180
Stabilizer Link Retainer 90948-02180
Stabilizer Link Lower Bushing 48849-60010
Stabilizer Link Lower Bushing 48849-60010

Suspension Components:


Knuckle Bushing 90381-35001
Knuckle Bushing 90381-35001
Knuckle Gasket 43436-60020
Knuckle Gasket 43436-60020
Dust Shield 90313-99001
Dust Shield 90313-99001
Inner Seal 90316-A0001
Inner Seal 90316-A0001
Upper Control Arm Bushing 48632-60010
Upper Control Arm Bushing 48632-60010
Dust Cover 43324-69085
Dust Cover 43324-69085
Bushings 48654-60010
Bushings 48654-60010
Bushings 48655-60010
Bushings 48655-60010
Bushing 43345-69015
Bushing 43345-69015
Support Assembly Bushing 48177-60010
Support Assembly Bushing 48177-60010
Spring Bumper 48304-60100
Spring Bumper 48304-60100
Shock Absorber 48511-69585
Shock Absorber 48511-69585
Shock Bumper 90540-17006
Shock Bumper 90540-17006

Upper Control arm:
Upper Control Arm Bushing 48632-60010
Bushings 48654-60010
Bushings 48655-60010
Shock Absorber 48511-69585
Support Assembly Bushing 48177-60010
Stabilizer Bar Bushing 48815-60111
Stabilizer Link 48820-60032

Rear Suspension:
Shock Absorber 48531-69835
Upper Control Arm 48710-60070
Upper Control Arm 48710-60080
Lower Control Arm 48720-60040
Stabilizer Link 48802-60090


if there is anything else i should do while i am in there i would love to know , also if some part is unneccessary please let me know.... also i am in nj if anyof you are too we should meet up. peace and thanks for all and any guidance.

 

[fooldall1]

You might just try the stabilizer bar bushings and end links, and tie rod ends. See where you're at in terms of performance. If the shocks are shot, just get the 35 dollar OEM kits and do all 4. Have you looked at your boots on the ball joints on the UCA and LCA? If they're shot- ripped, dirty, etc then you can do those as well (~400 in aftermarket parts if you decide to not go OEM, good quality parts can be used instead by 555 or Moog, or others- but use RUBBER instead of POLY (mine cracked in just over a year). Point is, sure you could hit EVERYTHING in there but try the primary components FIRST and just buy them and do the work as needed. UNLESS money is no object.

 

[tklein]

You might just try the stabilizer bar bushings and end links, and tie rod ends. See where you're at in terms of performance. If the shocks are shot, just get the 35 dollar OEM kits and do all 4. Have you looked at your boots on the ball joints on the UCA and LCA? If they're shot- ripped, dirty, etc then you can do those as well (~400 in aftermarket parts if you decide to not go OEM, good quality parts can be used instead by 555 or Moog, or others- but use RUBBER instead of POLY (mine cracked in just over a year). Point is, sure you could hit EVERYTHING in there but try the primary components FIRST and just buy them and do the work as needed. UNLESS money is no object.

ok i hear waht your saying...... but what should my baseline retrofit even be? where do i start?

 

[tklein]

ok cool i get what you are saying< i will do base line then see how things are performing. so hve you ever heard of the 1000 - 1500 slow speed rattle when accelerating at at that rpm, seems like it could be suspension related

 

[2001LC]

First start with inspecting the front end. Wheel bearings, steering rack, ball joint. How the stance, need some rake (drop in front).
Tire condition, pressure, balance. How's stability in the turns.
These are very common areas that need attention. Follow the owners Maintenance Guide, see what Toyota says.

Scarp the parts list. Start over. With 138K miles. Unless you're in the rust belt. This is not a shot suspension.

Here's one to get you start with, no tools needed.


Here what you want

 

[Bull Moose 100]

Was it worth it to replace the Support Assembly Bushing 48177-60010?

I am redoing my entire suspension/steering at 300k miles and I over looked this part.

It looks like it's apart of the cross member that goes from one torsion bar adjuster to another