Jimzz

I am working on a 2010 is350c and the rear tires are getting eaten up on the very most inside of the tread.
The first owner had this issue and the tires were replaced and an alignment was performed. But it did not seem to fix the issue.


Is this a common problem and is there a fix? The car is not modified and has a little less than 40k on it.

HankMoody

Taking it to get laser aligned and see what the rear wheels are actually doing will help a lot. The car should not have super neg camber if not modified or wrecked in some way.

RandyIS250

find a good alignment shop tell you to inspect all suspension component 1st before you proceed the adjustment, most shop dont do that.

Sounds like you have to replace both rear left and right Adjustment Toe, is your car AWD or RWD ?

Ya you can fix if a car can't be fixed it won't be allowed on the road !

Jimzz

Its a rwd 350c (convertible)


The previous owner had the same issue and from what I have found there is no rear camber adjustment? But there are aftermarket rear control arms that make it adjustable.


It is wearing the same on both sides and I don't see any obvious issues like bent arms.
I think my next step will be to get a free alignment check from sears or some place to see what the specs are now. If they are out a lot then I will order the adjustable arms.

RandyIS250

Only adjustment toe no rear camber . Dealer costs 500$ for both . I think performance one is same price . Mine also gone bad at rear left im waiting for the right to goes bad and I'll replace in pair . I might get performance one Megan racing etc.

Jimzz

Yea that is what I have read and am seeing that's why there are aftermarket options now.


I found these when looking the issue up...
http://www.ebay.com/itm/381506533894?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Will still get an alignment check first then go from there.


Thanks

RandyIS250

Yes that's the one . U can replace with oem . The arm always looks fine it's the bushing that beat up and crack that's the reason your tires get premature worn out . Np bro

Mason123

I bought the spc rear camber arms and just eyeballed the adjustment and fixed my camber issue but i lowered mine on bc coils. the car being unmodified they may have hit something to cause camber wear like that

lobuxracer

iTrader: (2)

Is your car lowered? If it isn't, your problem is incorrect toe, not bad camber. Camber needs to exceed 2.5 degrees to influence tire wear. Few cars, except the very slammed ones, exceed this number. Incorrect toe is a common problem with all 2IS cars.

WylieKylie

iTrader: (2)

^ The voice of reason! 98%+ of the tire wear issues that are first diagnosed on these boards as "camber" wear are really toe wear.

lobuxracer

iTrader: (2)

100% of front inside edge wear on the 2IS is a combination of LCA bushings and toe. Replacing the factory squishy rear bushing with polyurethane and setting toe to zero cures these ills remarkably well. The rear is simply toe. I learned this years ago when I put new tires on the rear of my Supra and had the exact factory number set for rear camber and toe. The tires were dead in 6k miles. I took it to an alignment expert and said I have too much camber. He said, "No way. Too much toe. Look at the wear pattern and it is obvious." That's how the "Lance" alignment for Supras was born. Since then I've done chassis tuning on mini-sprint cars and learned a great deal about tires, alignment, and chassis setup.