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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Anyone used FIGS rear knuckle bushing?

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Old May 8, 2022 | 05:01 PM
  #16  
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Originally Posted by lexo98
They increase toe when accelerating because they squat. Stiffer suspension components reduce the amount it will squat. Oem specs take into account how the oem suspension is set up. Being that you have some aftermarket parts oem specs might not be exactly right for you. I’m always concerned whenever I see final alignment results still in the red zone.
Oh, do you mean Bump Steer?! I just shot out of that rabbit hole, after installing Figs rear LCA's, Toe and Traction Arms. Even after I finally dialed in the camber and toe, I remember my head shaking left and right while driving over dips on the highway. Using a vertical laser projector pointed to a mirror taped to the wheel, I jacked the wheel up and down, and observed the laser line reflection on the wall make an arc as it traveled up and down on the wall (toe changes during suspension travel, aka bump steer). I dialed the traction arm length until the line moved straight up and down, and now there is no bump steer. If I raced, I'd dial in a little bump steer, which can help steer the rear end coming out of a corner.

Oh, and for every bump steer correction (made by adjusting the length of the traction arm), camber and toe had to be reset. Left side took maybe 10 iterations, the right took many, many more iterations.
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Old May 8, 2022 | 05:06 PM
  #17  
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Originally Posted by DMPesso
sorry thought I answered you. Yea I did. Figs mentioned my rear toe being 0 could cause wandering which makes sense. They said it’s good to have a little toe in. But upon googling RWD cars increase their toe in under acceleration and load so I’m sure now it’s fine.
Your final numbers look fine, expect the front and rear toe. The front should toe in slightly for more stable steering, but you're now towing out by a total of 0.20 degrees. Rear toe should also be slightly in, as mentioned, to help the rear end track better. I'd shoot for -0.05 deg total front and rear toe, if that's possible for an average alignment shop.
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Old May 8, 2022 | 05:11 PM
  #18  
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Originally Posted by firelizard
I can't shake the feeling the cam in the right photo is upside down. I can't go check right now but I'm fairly certain, from when I was last working on the car, that both cams should be oriented the same way, not 180° to eachother.
Lol, it'd be rare to have a 22 year old car have both camber adjustment cams be oriented the same on the left and right! How many hard potholes and curb hits have accumulated over two decades of fun? How many hard landings after cresting over sharp hills at speed?
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Old May 9, 2022 | 09:54 AM
  #19  
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Originally Posted by CurlyG
Lol, it'd be rare to have a 22 year old car have both camber adjustment cams be oriented the same on the left and right! How many hard potholes and curb hits have accumulated over two decades of fun? How many hard landings after cresting over sharp hills at speed?
I'm not talking about identical camber left and right. Look at the photos, the one on the right is oriented 180° to the one on the left. That doesn't happen by accident. Also, the car has just been aligned, there's no reason for them to have been bumped out of alignment at all if they were torqued properly
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Old May 9, 2022 | 12:58 PM
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Originally Posted by firelizard
I'm not talking about identical camber left and right. Look at the photos, the one on the right is oriented 180° to the one on the left. That doesn't happen by accident. Also, the car has just been aligned, there's no reason for them to have been bumped out of alignment at all if they were torqued properly
i notice the rear doesn’t stay exactly to where it was last. The front more or less stays. I’m thinking because it’s rwd and I drive aggressively sometimes ? I’m going to have my friend adjust the cams and get another alignment though. That’s bothering my ocd having them like that
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Old May 9, 2022 | 06:05 PM
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If your lower control arm bolts are moving it's because they're not installed properly. Unless by "drive aggressively" you mean driving into curbs and catching air off speed bumps, nothing should be changing.
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Old May 10, 2022 | 07:48 AM
  #22  
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Originally Posted by firelizard
If your lower control arm bolts are moving it's because they're not installed properly. Unless by "drive aggressively" you mean driving into curbs and catching air off speed bumps, nothing should be changing.
HAHAHA. Na nothing like that. Well they aren’t moving per say but the alignment settings are not EXACTLY the same each time I go which i assumed is normal to move within the green range after driving in NYC horrible roads. Before replacing the rear knuckles and front steering rack bushings it would be in red after only a few weeks
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