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Old 07-19-2015, 06:53 AM   #13
san rensho
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Join Date: May 2011
Location: Miami florida
Posts: 1,591
Quote:
Originally Posted by Timco View Post
Great post. I have a very distinct vibration @ 35-40 and 65-70. Brought it in for balance. That inside edge is right at tread bars and between that and an alignment from replacing a trailing arm it needs an alignment and rears this week.

What does a proper alignment make the rears sit like? As far in on that inner edge? Should we be telling the alignment guy anything?
Common wisdom is to get as much negative camber OUT of the rear wheels. It will always be somewhat negative because the nature of the stock suspension.

Second, and probably more important, get the rear toe as close to 0 deg. as possible. Most people think the inside wear is caused by negative camber but its usually because of too much toe.

The rear will be much more lively at 0 toe, which most people like because the car rotates easier, some people find it "twitchy".
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2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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