IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Any input on these?

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Old Jun 21, 2018 | 01:53 PM
  #16  
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But you say your camber is good. Why would you need to adjust your camber when it's already good? That's what I'm not following here. I don't think you understand how it all works and are just throwing parts at it. Trying to help you understand this, But up to you.

I have a lot of experience with complete suspension rebuilding, tuning, and doing alignments myself.
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Old Jun 21, 2018 | 02:19 PM
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Originally Posted by KYLexusMkr
So I am having excessive inner tire wear in the rear on my ‘17 300. Not 💯 sure it’s the camber, but the toe adjustment is good so this is where I am leaning. Not having any real experience with aftermarket suspension tuning products myself, I am hoping somebody can help me out. I am thinking if the camber could be adjusted I may be able to get the wear issue taken care of. Thanks in advance.
Here’s my original post. The front is fully adjustable, tire wear is good. The rear only allows for toe adjustment, according to the shop, it is good, but the rear camber is fixed (non adjustable) so I was asking if these were good, this allowing the camber and toe to be fully adjustable on the rear like the front. Any help is much appreciated.
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Old Jun 21, 2018 | 02:30 PM
  #18  
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I see--though you still didn't say your camber is bad.

If you were lowered, your toe would be out of wack. So since your toe is good, i assume you aren't lowered. And if you aren't lowered, then how is your camber "bad."

There seems to be more than meets the eye here.

Post some pics of what you've got
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Old Jun 21, 2018 | 02:35 PM
  #19  
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You’re correct, it’s not lowered, it’s bone stock. Only aftermarket parts are the spoiler, aside from installing these once they come in. It’s a daily commuter, non F sport as well. Don’t really do spirited driving either, the tires have 20k on them but the fronts easily still have another 2-5k left in them. I’ll get some pics posted of the front wear.

Last edited by KYLexusMkr; Jun 21, 2018 at 02:40 PM.
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Old Jun 21, 2018 | 02:48 PM
  #20  
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Both fronts look like this, the other is left rear.
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Old Jun 21, 2018 | 02:49 PM
  #21  
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Yeah the only thing that will really cause that on a stock car, assuming a good alignment, is dynamic toe change. In other words, your oscillating wheel is experience excessive left/right movement as it goes down the road. It's basically wiggling itself into the ground as load is exerted on it. Your best bet is to zero out your toe during your next alignment.

A bulk of this would be caused by the lower control arm outer bushing. It's fairly large and excessively soft for comfort. This is by design.

As you know though, most people experience this more severely in the front. In the front, mine was bad.
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Old Jun 21, 2018 | 02:53 PM
  #22  
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Yeah that’s what I had read on here, most are front related and I’ll bring that up once everything comes in. It’ll have to be aligned again after the arms are installed, which isn’t a problem. Just not wanting the new tires to wear out prematurely due to this again. I appreciate the help as well.
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Old Jun 21, 2018 | 02:54 PM
  #23  
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They more or less look like my pattern, which I don't consider to be too bad considering I have 20k on mine. It could be made a bit worse due your particular tire/tire compound. How many miles are on your tires?

Here are my stock tires. Since this photo I put about another 3k on them. I have new tires coming in a week or so. Notice the inner wear:

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Old Jun 21, 2018 | 03:03 PM
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Mine have 20k on them, still the original tires bought with the car. Bridgestone Turanza and I’d be happy with a wear pattern like yours, but my concern is the circled area of mine, that’s the wearing part is, not so much on the tread blocks. The tire is almost like it’s riding on the sidewalls.
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