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Agree with others that toe in/out is causing the cupping.
I used new OE Wagon springs on both Aero sedans when I refreshed the suspension. Both pairs had sagged after 6 months. (and for the record my car rarely carries anything other than me, no lumber, no 4 adults in car pool, etc).
Toe in/out is set statically, but varies dynamically. The spec is to set the rear "pidgen toed" statically. Then when the car is moving the toe appraoaches to neutral. We observed this on a hunter alignment system.
My advice:
- replace the bushings, all of them. If these are worn the "dynamic toe" will vary too much and the relationship between static setting and the dynamic, rolling toe will be lost.
- replace the shocks. At 108k the OEM shocks are done (dont bother with a "bounce test" too much friction to be a good test)
- Keep the old springs, and adjust the ride height with spacers under the spring.
- get an excellent alignment. Find a shop that uses the best equipment and is run by the most OCD folks around.
_______________________________________
'08 9⁵ 2.3T SportCombi, Polar White
'01 9⁵ Aero Midnight Blue (benched)
'00 9⁵ Aero Midnight Blue (rescued)
'99 9⁵ Base model, Cosmic blue
'00 9⁵ Aero Silver (RIP - transmission )
Posts in this Thread:
- rear suspension sag and camber, Name Left Blank, Thu, 6 Feb 2014 08:19:48
- Re: rear suspension sag and camber, spring lifts, jeff022, Sun, 9 Feb 2014 07:22:17
- Re: Thanks, Jon Fero, Fri, 7 Feb 2014 08:48:45
- Re: rear suspension sag and camber, RMinNJ, Thu, 6 Feb 2014 13:48:58
- Re: rear suspension sag and camber, Link, Thu, 6 Feb 2014 10:21:45
- dont bother with OE wagon springs., bobc , Thu, 6 Feb 2014 09:46:55 <-- Viewing This Message
- NOT-camber!!, saabsince 93b , Thu, 6 Feb 2014 09:00:331
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