All about Lexus IS premature inner tire wear
10-22-22, 08:56 AM
#316
12-12-22, 12:19 PM
#317
My 2021 I replaced the front bushings with the RCF and aligned it so the fronts are good. The alignment shop noted the camber in the rear was not adjustable and probably needed it. Now at 13k miles I am noticing inner tire wear in the rear. Not dramatic, but enough that I am starting to look at replacement tires. Might have to see if I can get an adjustable rear camber kit and do that before I get new tires.
Last edited by FH212; 12-12-22 at 12:33 PM.
12-27-22, 08:21 AM
#319
Lead Lap
^^ Did you ever have an alignment done/checked on yours? The reason I ask is that every Lexus I got needed an alignment right out of the dealer. I am not sure if the messed upalignment is happening in transit when these are being tied down on ships/trucks but thie even was the case on the wife's toyota. I am never going to buy a car an assume the alignment is correct before I drive away. I would rather pay for an alignment check and have the peace of mind. That being said, after they realize the alignment is off (and that I am right), they never charge me 
12-27-22, 09:18 AM
#320
^^ Did you ever have an alignment done/checked on yours? The reason I ask is that every Lexus I got needed an alignment right out of the dealer. I am not sure if the messed upalignment is happening in transit when these are being tied down on ships/trucks but thie even was the case on the wife's toyota. I am never going to buy a car an assume the alignment is correct before I drive away. I would rather pay for an alignment check and have the peace of mind. That being said, after they realize the alignment is off (and that I am right), they never charge me
The following users liked this post:
wthrman2 (12-27-22)
03-22-23, 12:36 AM
#321
Driver School Candidate
hey guys how you doing,
purchased 2nd hand a 2018 is300 rwd F sport, love the car!
as i was doing research before purchasing i also ran into this thread in regards to the LCA Bushes and the uneven tire wear up front. so i purchased the RC-F front set and also some lowered springs, i had a look at the RC-F LCA bushes and just looked at whats on the car, they look similar to each other.
since i purchased the car off a dealership i wasnt able to ask if it was ever changed by the first owner. just wanted to ask does the stock IS LCA bushes look exactly the same as the RC-F ones? im assuming the bushes are the only thing thats different, IS being softer and RC being stiffer?
im still going to get them changed soon, get the springs installed along with a good alignment. but just wanted to know from factory the IS300 LCA bushes are pretty much identical to the RC ones?
cheers
purchased 2nd hand a 2018 is300 rwd F sport, love the car!
as i was doing research before purchasing i also ran into this thread in regards to the LCA Bushes and the uneven tire wear up front. so i purchased the RC-F front set and also some lowered springs, i had a look at the RC-F LCA bushes and just looked at whats on the car, they look similar to each other.
since i purchased the car off a dealership i wasnt able to ask if it was ever changed by the first owner. just wanted to ask does the stock IS LCA bushes look exactly the same as the RC-F ones? im assuming the bushes are the only thing thats different, IS being softer and RC being stiffer?
im still going to get them changed soon, get the springs installed along with a good alignment. but just wanted to know from factory the IS300 LCA bushes are pretty much identical to the RC ones?
cheers
03-22-23, 06:35 AM
#322
hey guys how you doing,
purchased 2nd hand a 2018 is300 rwd F sport, love the car!
as i was doing research before purchasing i also ran into this thread in regards to the LCA Bushes and the uneven tire wear up front. so i purchased the RC-F front set and also some lowered springs, i had a look at the RC-F LCA bushes and just looked at whats on the car, they look similar to each other.
since i purchased the car off a dealership i wasnt able to ask if it was ever changed by the first owner. just wanted to ask does the stock IS LCA bushes look exactly the same as the RC-F ones? im assuming the bushes are the only thing thats different, IS being softer and RC being stiffer?
im still going to get them changed soon, get the springs installed along with a good alignment. but just wanted to know from factory the IS300 LCA bushes are pretty much identical to the RC ones?
cheers
purchased 2nd hand a 2018 is300 rwd F sport, love the car!
as i was doing research before purchasing i also ran into this thread in regards to the LCA Bushes and the uneven tire wear up front. so i purchased the RC-F front set and also some lowered springs, i had a look at the RC-F LCA bushes and just looked at whats on the car, they look similar to each other.
since i purchased the car off a dealership i wasnt able to ask if it was ever changed by the first owner. just wanted to ask does the stock IS LCA bushes look exactly the same as the RC-F ones? im assuming the bushes are the only thing thats different, IS being softer and RC being stiffer?
im still going to get them changed soon, get the springs installed along with a good alignment. but just wanted to know from factory the IS300 LCA bushes are pretty much identical to the RC ones?
cheers
The following users liked this post:
mubsy85 (03-22-23)
03-22-23, 04:16 PM
#323
For me I was going to rock the RCF LCA bushings and knew it was an upgrade over the IS. Instead of rocking the RCF, I went with Figs #2 polyurethane busing 90 (go big or home style 
). After having it for 2 months, I think its a lot better than the RCF imo because its a one shot issue and don't have to worry about it in the near future when your car is lowered. Just get your car aligned and your good.
). After having it for 2 months, I think its a lot better than the RCF imo because its a one shot issue and don't have to worry about it in the near future when your car is lowered. Just get your car aligned and your good.
03-22-23, 11:33 PM
#324
Driver School Candidate
i was actually thinking of just going hard or go home style as well, figs was the last option as my concern is if i was to change one to figs that would mean i should change the rest of the front and rear bushings to figs as well, im worried i might turn the daily car into a weekend race car lol. but i'll install the RC-F ones first, plus good alignment and i'll go from there.
thanks for the help fellas!
thanks for the help fellas!
The following users liked this post:
LaZeR (04-09-23)
03-30-23, 01:52 PM
#326
I still get inner tire wear even with RCF/GSF bushings and post alignment but I might attribute that to the RSR down springs I have-- pushes the car to about -1.5 to -1.8 degrees of camber in the front. Rear isn't bad though
04-09-23, 11:08 AM
#327
RCF zero offset LCA bushing with +.08 toe in on each side has eliminated any adverse tire wear on my 2017, oem set lasted about 10k, I have 15k so far and totally even wear.
The rear can also be helped by an additional of a camber kit and setting the camber to 1 degree of camber and toe set at +.015 on each side. I run SPC camber arm in the rear.
With this setup I have perfect even wear now.
The rear can also be helped by an additional of a camber kit and setting the camber to 1 degree of camber and toe set at +.015 on each side. I run SPC camber arm in the rear.
With this setup I have perfect even wear now.
04-09-23, 11:35 AM
#328
Advanced
For me I was going to rock the RCF LCA bushings and knew it was an upgrade over the IS. Instead of rocking the RCF, I went with Figs #2 polyurethane busing 90 (go big or home style ). After having it for 2 months, I think its a lot better than the RCF imo because its a one shot issue and don't have to worry about it in the near future when your car is lowered. Just get your car aligned and your good.
). After having it for 2 months, I think its a lot better than the RCF imo because its a one shot issue and don't have to worry about it in the near future when your car is lowered. Just get your car aligned and your good.FIGS & RRacing LCA bushings are great: 1) if you want to spend the extra moola $$$, 2) for much greater performance, but 3) of course you'll still have to buy new tires but can wait longer than with the RC/GS bushings.
Last edited by LaZeR; 04-10-23 at 09:22 AM.
04-09-23, 11:39 AM
#329
Advanced
04-10-23, 06:01 AM
#330
Yes the aftermarket bushing in the front seemed to totally fix my issue up front. It’s the rears now smh. I really don’t want to end up getting new tires with the inner and outer edges still at 70-80% tread due to the centers worn down. Even ran lower pressure in them for awhile 28-32psi.