I have a IS300 Fsport and my tires are wearing on the inside significantly faster. I just got an alignment done but I was wondering what are the original OEM alignment specifications for this car so I could compare my results. I have attached a picture of my results. Can anyone help?

 

Completely normal. The problem is not what your wheels are doing at rest (on the machine) but the alignment under dynamic load. You have to pay to play with this class of car, particularly this car. Be prepared to eat through tires and brakes an an extremely fast rate. 15k for both.

 

I'm not seeing that picture. Seems like it starts loading and then vanishes.

Well for what it is worth, I had an alignment at 17,000 miles since my tires were out of spec, presumably due to a pothole. However, even having them realigned, the inner parts of my front tires were shot by 22,000 miles.

If you just look around on this very forum, inner tire wear is a well-documented issue for this car, and is kinda expected.

 

Poly or stiffer lower control arm bushings are about the only way to stop the dynamic toe change under load which would in turn stop your inner tire wear. Naturally, there are cons to doing this, but just throwing it out there for you.

 

Do you know if this happens on the 2017+ models as well?

 

 

What's the part number on those? I'm interested in going this route over USRS as well.

 

Courtesy of member Nan88:

Bought the GSF/RCF bushings from MegaZip and are shipping from Japan. (JDM parts yo!)
Will update again once installed and driven on.
Crazy price with the discount code.
My local Lexus dealer wanted $101 per bushing lol.

Alternative places to buy the alternative parts lol:
These prices will also include the bracket so no pressing is required, just bolt-off bolt-on.

MegaZip discount code I used (also on website top banner):
10% DISCOUNT ON ALL GENUINE PARTS!
DISCOUNT COUPON CODE - ORIGINAL10
COUPON IS AVAILABLE UNTIL 15.09 23:59 (GMT -4).
~8-9Hours left at time of this post.

$30.91 per bushing with discount code - MegaZip:
https://www.megazip.net/zapchasti-dl...?q=48075-24010
https://www.megazip.net/zapchasti-dl...?q=48076-24010

$49.80 per bushing - Discount Parts Monster:
https://www.discountpartsmonster.com...ket-4807524010
https://www.discountpartsmonster.com...ket-4807624010

$50.64 per bushing - Lexus of West Kendall:
https://parts.lexusofwestkendall.com...ket-4807524010
https://parts.lexusofwestkendall.com...ket-4807624010


Obviously that coupon probably doesn't work anymore for Megazip, but I used it and got them in a week.

 

Let me know how they feel. Did you install them yourself? Any instructions to follow? I guess the install would be similar to the USRS ones, but anything else to know besides that?

 

 

Good professional choice choosing these over aftermarket. We used to do this trick in the old days with BMW. On non-M BMW E46s, they have a soft mushy hydraulic fluid filled bushing that wore out fast and caused excessive wear too. We replaced them with solid designs--Either ///M, Z4M, or Meyle HD. Basically stiff rubber compounds without fluid internals.

You'll get more vibration but still maintain needed compliance. More on the sporty side of the spectrum, not on the extreme end. Going extreme will just lead to problems.

I'm wondering if they just slide on or need a puller and press to deal with. (with the ones already in a bracket)

You guys don't know but you also have mushy stuff outback you can replace w/ RCF solid balljoints. Another trick we used to do in the BMW world too. Switch to rear ///M rear balljoints.