kuWuPt

iTrader: (13)

I've been getting that 65+ vibration that I've been dealing with for awhile now and over the past couple of weeks its gotten worse. Well I ended up ordering OEM motor mounts, OEM transmission mount, OEM upper control arms, Moog inner and outer tie rods, moog ball joints, and new hub centric rings. I'll replace the parts individually and report back on what makes a difference.

When I initially bought the car I had changed the ball joints and the outer tie rods and had the whole Daizen bushings done including the steering rack bushings.

Got the motor mounts replaced yesterday. The motor mount on my passenger side was split in two so I definitely needed to get that changed. When my car was on the lift I noticed my front tires were worn out down to metal. About an inch right at the edge, I have about -3.2 degrees in camber on the front but this was not camber wear.

After the motor mounts were replaced, the vibration on the floor board I feel has reduced. I'm still getting steering wheel shake. Getting the tires replaced before the tie rods and will report back.


UPDATE: 03/15/2012

Changed out the front tires, got it road force balanced and did an alignment. Made a big improvement. I would say almost 50% of the vibration is gone. Put it back in the shop and changed out the inner and outer tie rods along with the ball joints. I think the culprit in my case was the combination of the tires and the inner tie rods. The inner tie rods could be flung around which definitely needed changing.

My car is completely shake free now. So to date these are the suspension components that have been changed:
- Wheels
- Suspension
- Tires
- Daizen bushings
- Figs Rear LCA
- Figs rear toe links and sway links
- Motor Mounts
- Transmission mount
- Tires
- Upper control Arm
- Ball joints
- Inner and Outer Tie Rods

Hope this helps.

justablkv8

iTrader: (2)

I did everything suspension wise just as you did. But now I'm about to redo it again with all oem parts. I'll be doing a few other things that most people wouldn't do (steering rack) but its just me being precautious this time around.

I read up the other day that sometimes the floor shake can be caused by the driveshaft center bearing, so that may be something to look into.

krispl

I did exactly what you did, except for upper control arms. All daizen bushings, motor and tranny mounts, ball mjoints, allignments and then just recenty inner and outer tie rods and that made a huge improvement! I've been shake free since then!

DosyBoy

iTrader: (1)

I got 121k on my car, mechanic checked my balljoints said he couldn't even budge them, all my bushings look good, I got an alignment, balance, new tires, rotors, brakes, all around and 90% of my shakes are gone ...

NEbiker10

iTrader: (1)

So far I have changed the steering rack bushings(ricochet @$28) and sway bushings and it has tightened it up quite nice.

I was thinking of replacing my trans mount to relive that stop light shake

Augs300

iTrader: (1)

Guys try this and report back.

https://www.clublexus.com/forums/gs-...s-fixed-2.html

DIY thread.
https://www.clublexus.com/forums/gs-...djustment.html

Kyle Harty

iTrader: (17)

If you did poly sway bushings where did you purchase them? Haven't looked intensively for them, would like these but don't want to gamble on tmengineering actually delivering. If there someone else selling them I'd love to know.

justablkv8

iTrader: (2)

^ ebay has them, just search for gs steering rack bushings. They're like $33 shipped.

I posted a WTB thread for daizen bushings in the WTF/FS area here and within a few minutes I got brand new bushings for $40.00 no wait.

also ADUS makes the steering rack bushes too.

Kyle Harty

iTrader: (17)

I've already got the poly steering rack bushings, would like to do the sway bar bushings as well. I'll check ebay and google, I think I looked around a little bit last summer and didn't find the sways easily, maybe I didn't look that hard.

Edit: Just ordered front and rear prothane poly sway bushings from eBay, a little under $30. Can't hurt given the age and mileage on the car!

kuWuPt

iTrader: (13)

'Updated original post.

sakataj

iTrader: (182)

kyle, these solid steering rack bushings i was working with FIGS on are being re-worked since the first batch (made for the IS) didnt fit correctly





i ended up buying a used GS steering rack and shipping it to FIGS, i know he's still working on them since he posted some recent pics on facebook


http://www.facebook.com/photo.php?fb...&type=1&ref=nf
http://www.facebook.com/photo.php?fb...&type=1&ref=nf

justablkv8

iTrader: (2)

Those solid mounts will definitely transfer vibration to the chassis.

sakataj

iTrader: (182)

u miss the point of them....lol.

justablkv8

iTrader: (2)

Enlighten me.

sakataj

iTrader: (182)

read over these threads, we discuss them

https://www.clublexus.com/forums/sus...enderings.html
https://www.clublexus.com/forums/sus...k-bushing.html


also guys here's a DIY fix for some movement

https://www.clublexus.com/forums/gs-...-movement.html