Lexus IS 500 bushings
Thread Starter
Pit Crew
Joined: Sep 2021
Posts: 139
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From: ms
Lexus IS 500 bushings
I'm considering buying RR Racings street version bushings for my IS 500 or the RCF bushings for the purpose of better steering feel and to hopefully mitigate the issue of premature tire wear that these models are known for.
A couple of questions,
A couple of questions,
- How does the steering response feel with either of these bushings? Is it significantly stiffer?
- Which one should I get with for daily driving? I like to get on the gas from time to time, but I don't do any racing.
- If someone has tried both, how do they differ in terms of feel, response, etc?
- Is it worth it?
Lead Lap
Joined: Oct 2014
Posts: 4,681
Likes: 4,696
From: ON
^^ I haven't tried the RR Racing bushings but I have the RCF/GSF bushings and I feel it is a good middle of the road approach. It preserves the Lexus driving signature, doesn't introduce NHV, is cheaper and will help mitigate some of the tire wear issue.
1. It is a bit stiffer but not OMG this is super stiffer or significantly noticeable....
2. The RCF/GSF will be adequate for regular daily driving and the odd spirited driving
3. Can't really comment
4. For me, I would say yes....but I didn't pay lots and I felt it was worth it
1. It is a bit stiffer but not OMG this is super stiffer or significantly noticeable....
2. The RCF/GSF will be adequate for regular daily driving and the odd spirited driving
3. Can't really comment
4. For me, I would say yes....but I didn't pay lots and I felt it was worth it
Intermediate
Joined: Nov 2021
Posts: 361
Likes: 675
From: NA
^^ I haven't tried the RR Racing bushings but I have the RCF/GSF bushings and I feel it is a good middle of the road approach. It preserves the Lexus driving signature, doesn't introduce NHV, is cheaper and will help mitigate some of the tire wear issue.
1. It is a bit stiffer but not OMG this is super stiffer or significantly noticeable....
2. The RCF/GSF will be adequate for regular daily driving and the odd spirited driving
3. Can't really comment
4. For me, I would say yes....but I didn't pay lots and I felt it was worth it
1. It is a bit stiffer but not OMG this is super stiffer or significantly noticeable....
2. The RCF/GSF will be adequate for regular daily driving and the odd spirited driving
3. Can't really comment
4. For me, I would say yes....but I didn't pay lots and I felt it was worth it
Thread Starter
Pit Crew
Joined: Sep 2021
Posts: 139
Likes: 98
From: ms
I believe these are it:
https://www.lexuspartsnow.com/parts/...tra2=&filter=()
https://www.lexuspartsnow.com/parts/...knuckle,,4807648075-24010
https://www.lexuspartsnow.com/parts/...tra2=&filter=()
https://www.lexuspartsnow.com/parts/...knuckle,,48076
48075-24010
48076-24010
Thread Starter
Pit Crew
Joined: Sep 2021
Posts: 139
Likes: 98
From: ms
^^ I haven't tried the RR Racing bushings but I have the RCF/GSF bushings and I feel it is a good middle of the road approach. It preserves the Lexus driving signature, doesn't introduce NHV, is cheaper and will help mitigate some of the tire wear issue.
1. It is a bit stiffer but not OMG this is super stiffer or significantly noticeable....
2. The RCF/GSF will be adequate for regular daily driving and the odd spirited driving
3. Can't really comment
4. For me, I would say yes....but I didn't pay lots and I felt it was worth it
1. It is a bit stiffer but not OMG this is super stiffer or significantly noticeable....
2. The RCF/GSF will be adequate for regular daily driving and the odd spirited driving
3. Can't really comment
4. For me, I would say yes....but I didn't pay lots and I felt it was worth it
I thought I would offer some input.
The RCF bushings are marginally harder than the IS bushings. They measure out around 54 while the IS is around 46. While I haven't had a GoPro on them, I can't imagine they reduce a ton of the lateral control arm movement. I know for a fact they do nothing for the Axial (front and back) movement from hard braking. This is what causes toe in under hard braking and is a major contributor to inner tire wear. With the large pre-loaded thrust washer on the RR Racing bushing, it is the only bushing on the market that prevents that type of movement.
These bushings are not aggressive as they are made out to be. We put them on brand new, 2k mile IS500's and never hear a peep from the customers about vibrations or any of that. We also put them on RCF's regularly. That's right, RCF's have inner tire wear just like everyone else. They are not exempt. Think about that before you spend money on their bushings.
Justin | RR Racing Sales
The RCF bushings are marginally harder than the IS bushings. They measure out around 54 while the IS is around 46. While I haven't had a GoPro on them, I can't imagine they reduce a ton of the lateral control arm movement. I know for a fact they do nothing for the Axial (front and back) movement from hard braking. This is what causes toe in under hard braking and is a major contributor to inner tire wear. With the large pre-loaded thrust washer on the RR Racing bushing, it is the only bushing on the market that prevents that type of movement.
These bushings are not aggressive as they are made out to be. We put them on brand new, 2k mile IS500's and never hear a peep from the customers about vibrations or any of that. We also put them on RCF's regularly. That's right, RCF's have inner tire wear just like everyone else. They are not exempt. Think about that before you spend money on their bushings.
Justin | RR Racing Sales
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RR Racing is having a holiday sale and so I finally broke down and bought a set of the USRS street version. the stiffer race track version is also on sale. also got some love for Veteran's Day as well to cover the shipping.
RR Racing USRS Street ver
thanks Justin!
RR Racing USRS Street ver
thanks Justin!
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Thread Starter
Pit Crew
Joined: Sep 2021
Posts: 139
Likes: 98
From: ms
RR Racing is having a holiday sale and so I finally broke down and bought a set of the USRS street version. the stiffer race track version is also on sale. also got some love for Veteran's Day as well to cover the shipping.
RR Racing USRS Street ver
thanks Justin!
RR Racing USRS Street ver
thanks Justin!
Please let me know how you like them.
Driver
Joined: Nov 2021
Posts: 67
Likes: 109
From: NJ
I'm considering buying RR Racings street version bushings for my IS 500 or the RCF bushings for the purpose of better steering feel and to hopefully mitigate the issue of premature tire wear that these models are known for.
A couple of questions,
A couple of questions,
- How does the steering response feel with either of these bushings? Is it significantly stiffer?
- Which one should I get with for daily driving? I like to get on the gas from time to time, but I don't do any racing.
- If someone has tried both, how do they differ in terms of feel, response, etc?
- Is it worth it?
Advanced
Joined: Jun 2017
Posts: 663
Likes: 45
From: CA > FL | ON > AB
Hey, for everyone who got new lower control arm bushings installed... what is % likelihood Alignment will go outta whack - would like to know "even slightly outta whack"? THANKS!!
Last edited by LaZeR; Jan 29, 2023 at 01:24 PM.
Intermediate
Joined: Nov 2021
Posts: 361
Likes: 675
From: NA
Advanced
Joined: Jun 2017
Posts: 663
Likes: 45
From: CA > FL | ON > AB
I thought I would offer some input. The RCF bushings are marginally harder than the IS bushings. They measure out around 54 while the IS is around 46. While I haven't had a GoPro on them, I can't imagine they reduce a ton of the lateral control arm movement. I know for a fact they do nothing for the Axial (front and back) movement from hard braking. This is what causes toe in under hard braking and is a major contributor to inner tire wear. With the large pre-loaded thrust washer on the RR Racing bushing, it is the only bushing on the market that prevents that type of movement.
These bushings are not aggressive as they are made out to be. We put them on brand new, 2k mile IS500's and never hear a peep from the customers about vibrations or any of that. We also put them on RCF's regularly. That's right, RCF's have inner tire wear just like everyone else. They are not exempt. Think about that before you spend money on their bushings.
These bushings are not aggressive as they are made out to be. We put them on brand new, 2k mile IS500's and never hear a peep from the customers about vibrations or any of that. We also put them on RCF's regularly. That's right, RCF's have inner tire wear just like everyone else. They are not exempt. Think about that before you spend money on their bushings.
Lead Lap
Joined: Oct 2014
Posts: 4,681
Likes: 4,696
From: ON
^^ As per my PM, if all they are doing the LCA bushings, they won't touch your rear so you wouldn't need a 4 wheel alignment although the cost for a front wheel alignment vs a 4 wheel makes it almost worth getting the 4 wheels done. If you haven't done one in a while, might as well get it done because the whole idea of swapping the bushing is to help prevent the inner tire wear so the alignment will also help and is not that expensive.
Pit Crew
Joined: Nov 2022
Posts: 229
Likes: 144
From: IL
Excuse my ignorance or local of knowledge on this matter but this is the first mod I’m looking to do. One - would this mod modify any power train warranty and who could I go to install this piece? Would Lexus do this?
looking to do this because of the notorious inner tire wear.
looking to do this because of the notorious inner tire wear.