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      12-15-2009, 09:29 PM   #1
miamie92m3
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Tire/Radial Pull

ALright..... I'm just really annoyed. Had Dinan springs installed & 12mm Macht Schnell spacers. ALso replaced rear tires. Fronts stayed since they are almost new. Very reputable alignment shop aligned car at same time to dinan specs supposedly at the less aggressive option for street. They also balanced all tires/wheels. Afterwards car is pulling pretty bad to the right and I take it back and the guy tells me its a radial pull caused by one of the front tires. Problem is the car never pulled at all prior to the spring install. Could one of the new rears be causing this? I'm ready to take the car now to the BMW dealer and have them align it. Anyone with experience here on this topic? This is really annoying. Thx.
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      12-16-2009, 04:49 AM   #2
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Are the new rear tyres exactly the same tyre make and spec as the fronts?
Other possibilities are that the car was aligned with the power steering rack not centred...all the specs seem spot on but when driving the rack is always trying to centre itself by turning slightly right.
Less likely but possible is that the corner weights are off.
Did you get a print out of the alignment?
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      12-16-2009, 03:01 PM   #3
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Hard to say without knowing Dinan's specs. Care to share? if they call for equal castor left and right, that could be your problem.
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      12-16-2009, 04:33 PM   #4
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Yes. The new tires are also OEM Michelin PS2. All alignment done to Dinan specs. I double checked it. They are telling me its the tires that are damaged. This is a real pain in the A$$
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      12-17-2009, 12:03 PM   #5
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If it is PS2, you can swap the tires side by side and see if the pull happens other direction.

I bet it's the same and I pretty sure your caster or camber went off while installing the springs, and the guy who does alignment is lazy to fix that.

Ask for the alignment data after the correction.
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