Go Back   Club Lexus Forums > Lexus Model Forums > GS Models > GS - Second Generation > Suspension and Brakes
Sign in using an external account
Register Forgot Password?

Inexpensive fix to body roll - Daizen polyurethane sway bushings

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 03-09-04, 11:56 AM   #16
PHML
Master Thread Closer!!
Trader Score: (33)
 
PHML's Avatar
 
Join Date: Jul 2002
Location: Waikele, HI
Posts: 9,859
Peter H. M. Lee
Send a message via MSN to PHML
Default

Quote:
Originally posted by BLW
It has been quite a while since I did the install. I do not remember If I did remove the end link hardware. I did not use the lock tite as per the instructions and I have had no losening of components> and I have rechecked them a couple times and everything was OK. I do remember the rears being a little tougher because of the smaller confines of the working space. Sorry I cannot offer any additional advice on install, it has been a while since I did this. PHML may have some advice since he just installed his.

If you are handy on your car, this is not a tough install.
Nope...no need to remove endlink at all. Keeping the endlink secured actually helps keep the OEM sway bars moving around when you try to get the bushings on. You need to twist the bushings enough so that the slit opening fits the bar. Yah...use all the supplied grease. Its kinda a messy job cuz you gonna get grease on your hands, but simple and well worth the $30.

I upgraded to the full Daizen Sway kit a few months later....so in essense...I had to do this twice (once on OEM bar, and again on Daizen bars).

PS...don't forget to use threadlockers and to torque the bolts.

Pete
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
PHML is offline   Reply With Quote
Old 03-17-04, 12:55 PM   #17
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default

Just got the Daizen polyurethane sway bar bushings from TM Engineering. See the attached pic of the kit contents:

1. (2) Front sway bar bushings.
2. (2) Rear sway bar bushings.
3. (3) Grease tubes
4. Installation instructions

I paid $38.80 for it shipped to my door from:

www.tmengineering.net

Anyways, to try to reduce my car's lean on corners, I thought I'd go this relatively cheap route first before I fork out ~$500 for enhanced sway bars (either Daizen or TRD Sportivos). I'm not a hardcore driver, but I definitely don't like the OEM sway in the car--FYI, my '99 GS400 has 80k miles on it (so the OEM rubber bushings could very well be worn). I'll put these on next week when I get a chance and will report back on my findings on this $39 experiment. . .
Attached Images
 

Last edited by SeattleGS400; 03-17-04 at 12:57 PM..
SeattleGS400 is offline   Reply With Quote
Old 03-17-04, 11:34 PM   #18
PHML
Master Thread Closer!!
Trader Score: (33)
 
PHML's Avatar
 
Join Date: Jul 2002
Location: Waikele, HI
Posts: 9,859
Peter H. M. Lee
Send a message via MSN to PHML
Default

Quote:
Originally posted by SeattleGS400
Just got the Daizen polyurethane sway bar bushings from TM Engineering. See the attached pic of the kit contents:

1. (2) Front sway bar bushings.
2. (2) Rear sway bar bushings.
3. (3) Grease tubes
4. Installation instructions

I paid $38.80 for it shipped to my door from:

www.tmengineering.net

Anyways, to try to reduce my car's lean on corners, I thought I'd go this relatively cheap route first before I fork out ~$500 for enhanced sway bars (either Daizen or TRD Sportivos). I'm not a hardcore driver, but I definitely don't like the OEM sway in the car--FYI, my '99 GS400 has 80k miles on it (so the OEM rubber bushings could very well be worn). I'll put these on next week when I get a chance and will report back on my findings on this $39 experiment. . .
I bet them stock cheapo bushings are gonna be worn out to da max....mines were unrecognizable at 28K miles.

Take pics of old bushings next to the new Daizen bushings.

Pete
PHML is offline   Reply With Quote
Old 03-18-04, 12:43 AM   #19
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default

Quote:
Originally posted by PHML
I bet them stock cheapo bushings are gonna be worn out to da max....mines were unrecognizable at 28K miles.

Take pics of old bushings next to the new Daizen bushings.

Pete
Will take a pic of the OEM rubber bushings when I pull them off the car next week. Also, I'll try to get the Daizen bushings installed and running for a couple days before I put on the newly ordered 235/45R17 Michelin Pilot Sport A/S on, as to not bias the results.

Will report back on the results with the polyurethane bushing replacement next week. . .

Last edited by SeattleGS400; 03-18-04 at 12:44 AM..
SeattleGS400 is offline   Reply With Quote
Old 03-18-04, 10:30 AM   #20
PHML
Master Thread Closer!!
Trader Score: (33)
 
PHML's Avatar
 
Join Date: Jul 2002
Location: Waikele, HI
Posts: 9,859
Peter H. M. Lee
Send a message via MSN to PHML
Default

Quote:
Originally posted by SeattleGS400
Will take a pic of the OEM rubber bushings when I pull them off the car next week. Also, I'll try to get the Daizen bushings installed and running for a couple days before I put on the newly ordered 235/45R17 Michelin Pilot Sport A/S on, as to not bias the results.

Will report back on the results with the polyurethane bushing replacement next week. . .
Great choice of tires....but I kinda bias!!

Pete
PHML is offline   Reply With Quote
Old 03-22-04, 11:05 PM   #21
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default Installation and Driving Impressions

Daizen Polyurethane Sway Bar Bushing Installation

Total time: 2 hours total.

Tools required: 10mm and 12mm socket, torque wrench, large screwdriver, jack stands and jack, rubber gloves (to keep your fingers clean), wheel lug wrench (21mm socket?)

FRONT SWAY BUSHING INSTALLATION

Jack up the front of the car. Remove the plastic underbody cover (1 main piece—about 7 bolts) and 1 left and 1 right plastic underbody/wheel well cover (2 bolts each). Pics will come later to help clarify, as I’m on a trip.

Remove the mounting bolts (2 per side) on the left and right sway bar mounting brackets. FYI, you do NOT need to remove the sway bar end links bolts to the front suspension arm. After the brackets come off (exposing the OEM rubber bushings), the sway bar will swing down due to gravity. Just slide out the OEM bushings (there is a slit in the front of the bushing to allow this). Prep the large Daizen polyurethane bushing by first spreading the bushing open to loosen it up a bit (only 1 end is cut open so that you can do this). Next, with 7/8 whole tube of grease—apply the supplied heavy grease all over the inside of the bushing evenly (this is where it’s helpful have a plastic glove to wear). Open up the bushing and slide the bushing onto the sway bar. Repeat for the other side.

Apply some grease onto the inside of the mounting brackets. Put the mounting brackets back on and tighten the bolts 21 ft-lbs. Replace the plastic underbody covers. Remove the jack stands.

REAR SWAY BUSHING INSTALLATION

Loosen the lug nuts of the rear tires. Jack up the rear of the car and remove all of the lugs and the rear tires. Remove the mounting bolts (2 per side) to the left and right mounting brackets to the rear sway bar (do NOT remove the rear end link bolts, however). The rear sway bar will swing down due to gravity. Slide out the rear OEM rubber bushings. Prep the small Daizen polyurethane bushing by first spreading it open using a large flathead screwdriver (put it in flat, then spin the screwdriver to give leverage to spread open the bushing at a few points—you MUST do this or you will not be able to get it open). Next, with ½ a tube of grease, apply the supplied heavy grease all over the inside of the rear polyurethane bushing. Open up the bushing with the screwdriver, and while its held open with the screwdriver, slide it onto the rear sway bar. Repeat for the other side.

Rotate the bushing so that the polygonal part is on the top. Apply some grease onto the inside of the mounting brackets. Put the mounting brackets back on and tighten the bolts 13 ft-lbs. Reinstall the wheels (76 ft-lbs), and remove the jack stands. Retorque the rear wheels.

MISC. INSTALLATION NOTES

An alignment with this modification is absolutely not required, or even necessary. The sway bar is secured onto the chassis by 2 mounting brackets, and the bar can slide a little bit to the left and right of the car, depending on the sway bar's current state of twist and steering wheel angle position. Removing and reinstalling the sway bar mounting brackets does not affect the alignment whatsover.

Rubber vs. Polyurethane Background Info: OEM rubber bushings have some cushioning before the sway bars twist, but the hard polyurethane makes the sway bars twist right away. As the OEM sway bars twist rather easily, having the OEM rubber bushings just makes the ride that much softer. Upgrading to the polyurethane bushings just takes out one softness factor into it, and contributes to better cornering handling with the OEM sway bars.

Daizen Polyurethane Sway Bushing Driving Impressions: Compared to OEM, these Daizen polyurethane bushings are a nice improvement—but nowhere near what a full aftermarket sway bar set would do with a stiffer bar. I would say that the Daizen polyurethane bushings give about 20-30% improvement over stock corner handling (Tom from TM Engineering has mentioned to me the same thing).

There is 20-30% less sway around corners than OEM, but the car does still sway. With the Daizen bushings, when you hit some bumps on corners, it oscillates left-to-right less and feels a bit more “composed.” The straight freeway ride is a bit more “planted” as well (due to less floaty side-to-side oscillation). There is no ride penalty, and no undue harshness from this upgrade. So far, there are no noise issues from this install, nor do I anticipate any (lots of heavy grease inside the threaded bushing openings, which help retain the grease) and the exterior of the bushings are coated with a slick surface.

Summary: Without hesitation, if you are still running the OEM sway bars with OEM rubber bushings and are not planning on spending big money on TRD sway bars or the Daizen sway bar set, buy this $30 Daizen polyurethane sway bushing upgrade set. This is an easy install, requires very minimal tools, and does not require a follow-up alignment. There is no impact on ride quality, and you will get 20-30% better corner handling than what the OEM rubber sway bushings offer. You can not go wrong with this inexpensive upgrade.

Last edited by SeattleGS400; 03-29-04 at 12:31 AM..
SeattleGS400 is offline   Reply With Quote
Old 03-24-04, 11:50 AM   #22
PHML
Master Thread Closer!!
Trader Score: (33)
 
PHML's Avatar
 
Join Date: Jul 2002
Location: Waikele, HI
Posts: 9,859
Peter H. M. Lee
Send a message via MSN to PHML
Default

wow....great writeup.
PHML is offline   Reply With Quote
Old 03-28-04, 01:22 PM   #23
koreanpers
Lexus Test Driver
Trader Score: (0)
 
Join Date: Aug 2003
Location: Minnesota
Posts: 1,469
Default

hey, this is cool, i think i will try these
koreanpers is offline   Reply With Quote
Old 03-28-04, 01:52 PM   #24
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default

Quote:
Originally posted by PHML
wow....great writeup.
Thanks. I just edited a couple of typos I originally had in the post. I'll get you those pics of the OEM rubber bushings tomorrow (Monday), when I get a chance. The OEM bushings actually looked fine, but nonehteless are rather soft compared to the Daizen polyurethane bushings. . .

I'll also get some more pics of the front sway bars and rear sway bars to help guide those interested in doing this easy mod.

Last edited by SeattleGS400; 03-28-04 at 01:54 PM..
SeattleGS400 is offline   Reply With Quote
Old 03-28-04, 11:58 PM   #25
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default Front sway pic

See the attached pictorial of what you should remove for the front sway bar bushing installation: plastic underbody covers (3 total) and the bolts for the 2 mounting brackets.

NOTE: You do NOT need to remove the sway bar end links from the main sway bar whatsoever.
Attached Images
 

Last edited by SeattleGS400; 03-29-04 at 12:28 AM..
SeattleGS400 is offline   Reply With Quote
Old 03-28-04, 11:59 PM   #26
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default Rear sway pic

See the attached pictorial of what you should remove for the rear sway bar bushing installation: the bolts for the 2 mounting brackets (in addition to the rear wheels for easy access).

NOTE 1: You do NOT need to remove the sway bar end links from the main sway bar whatsoever.

NOTE 2: The trapezoidal edge of the rear bushing must be at the top when installed, while the round edge is at the bottom. Both the Daizen polyurethane and OEM rubber bushings have these 2 shapes on the bushing when viewed from the open tops.
Attached Images
 

Last edited by SeattleGS400; 03-29-04 at 12:29 AM..
SeattleGS400 is offline   Reply With Quote
Old 03-29-04, 07:09 PM   #27
GSX4
Rookie
Trader Score: (0)
 
Join Date: Sep 2002
Location: California
Posts: 80
Default Noise

So base on all the comments here, no here had any problem with noises? I asked a Lexus technician he had concern about noises. He said it might create grinding noise which I might not be comfortable with. Had anyone here heard of any noise from installing the bushing?
__________________
1998 GS400 Black Nak
2003 GX470 Blizzard (White)
2006 IS350 Tungsten Pearl
GSX4 is offline   Reply With Quote
Old 03-29-04, 08:10 PM   #28
SeattleGS400
Lead Lap
Trader Score: (1)
 
Join Date: Jul 2003
Location: Idaho
Posts: 716
Default Re: Noise

Quote:
Originally posted by GSX4
So base on all the comments here, no here had any problem with noises? I asked a Lexus technician he had concern about noises. He said it might create grinding noise which I might not be comfortable with. Had anyone here heard of any noise from installing the bushing?
The concerns you and your Lexus technician brought up are very valid. Nonetheless, I've had the Daizen polyurethane sway bar bushings on for 1 week, and so far, I have no noise issues. As previously mentioned, I do not anticipate any future noise for the following reasons:

1. I've used lots of the supplied heavy grease inside the threaded polyurethane bushing openings, which help retain the grease between the bushing and the sway bar. The OEM bushings are smooth all over, including the sway bar tunnel. The Daizen polyurethane bushings have a finely-threaded tunnel for the sway bar, and it effectivley holds the grease inside.

2. The exterior of the Daizen polyurethane bushings are coated with a slick outer surface. This helps to minmize any rubbing with the mounting brackets. While probably not required, I put some of the supplied heavy grease between the mounting bracket and the Daizen polyurethane bushing to ensure that any noise does not occur.

Noise was my biggest concern with this install (ride quality was my second concern), and after much research into the Daizen company and talking with others, I figured this $30 modification was very low risk. If it didn't work like it was promised, I could easily swap them back to the OEM bushings. My assessment to this date remains that this is easily the best $30 you can spend to reduce your car's lean by 20-30% on corners--and it does not creat any noise and does not have any ride degradation penalties.

Concerning noise, others with this mod should also chime in with their experiences. Even those with the full Daizen sway bar set should chime in as well on the noise issue. While the full Daizen sway bars are obviously stiffer than the OEM sway bars, they still use the polyurethane bushings--if they don't have noise issues, I think your noise concerns should minimize

Again, it's not a full, stiffer sway bar replacement (i.e. full Daizen sways or TRD sways), but for the price, the Daizen polyurethane sway bushings upgrade has a good return on investment (ROV).

Last edited by SeattleGS400; 03-29-04 at 08:13 PM..
SeattleGS400 is offline   Reply With Quote
Old 03-29-04, 08:37 PM   #29
GSX4
Rookie
Trader Score: (0)
 
Join Date: Sep 2002
Location: California
Posts: 80
Default Noise

SeattleGS400,

Thank you for being very thorough with your writing. I think I'm comfortable enough to do this. You're right, can't really go wrong with $30 + labors. As you can probably tell, I'm no technician. You guy sound very knowledgable about your cars which I commence you. Just want to say "Thank you" for taking your time, and others, helping us (not very knowledgeable about our cars) on our decision by making it so easy to understand. So thanks you again!
__________________
1998 GS400 Black Nak
2003 GX470 Blizzard (White)
2006 IS350 Tungsten Pearl
GSX4 is offline   Reply With Quote
Old 02-08-06, 05:17 PM   #30
GSquicksilver
Lexus Test Driver
Trader Score: (0)
 
GSquicksilver's Avatar
 
Join Date: May 2002
Location: California
Posts: 1,149
Default

Bringing this thread back to life since i'm going to put on the daizen bushings this weekend.

question i have is, where did you guys jack up the car in the rear to install the bushings?

for the front, i can place 2 jack stands on the frame near the LCB, but in the rear, i can't find a place to put 2 jack stands. i just don't want to have a single jack holding on the rear differential while i climb down under the car.
__________________
1998 GS400 Alpine Silver
L-Tuned Grill, L-Tuned Exhaust, TRD Blue Racing Sways, TRD STB, TRD LCB, Eibach Pro Kit, Bilstein HD, Daizen Steering Rack Bushings, K&N Drop In, 2007 GS430 18" Rims, Pirelli PZero Nero M+S, 3M Tint, 3M Aerotect Clear Bra, 2001 OEM HID Retrofit

1993 LS400 Pearl White
Bone Stock Mint
GSquicksilver is offline   Reply With Quote
Old 02-08-06, 05:17 PM
 
 
 
 
Reply

Tags
430, bars, body, bumper, bushing, bushings, daizen, diazen, front, gs, improvement, photoshop, roll, sway, urethane

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Daizen sway bar....snapped!! PHML Suspension and Brakes 28 09-26-13 06:02 PM
Best place to buy Daizen and TRD sway bars twojayzee Suspension and Brakes 2 05-15-13 09:23 PM
front sway bar bushing noise LexXxuS101 GS - Second Generation 12 11-19-12 11:00 AM
Daizen Bushings Install Step By Step *56K Warning* D1GP Suspension and Brakes 28 07-19-12 08:48 PM
daizen sport tuning sways - wow! rominl Suspension and Brakes 0 05-28-03 01:59 AM

All times are GMT -7. The time now is 01:18 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info