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smokey-burnout · 07-02-2007, 11:31 PM

My 99 boxster also wouldnt align properly even with the toe adjusters all the way in it was still toed in. I had to give it a lot of neg. camber to get the toe to zero out. The tire wear problem started a about 22,000 mi. after the dealer replace the Rear main seal. I talked to a buddy of mine who is a porsche tech, I asked him what would happen if the car was set down on its weight, off the lift , while the trans and the cross members were out. He confirmed what i suspected that the tolerances in the bolt holes and the cars suspension not being tied together ,would splay the control arms out. And it would not bolt up in the same position it was before . My car also has the sports suspension which compounds the neg. camber issue even more as the car sits a little lower and ads a bit more camber gain compared to the base suspension .To fix the problem required me to loosen the crossmember bolts and the aluminum struts and pan under the trans, and pull everything together with a cable puller ,the tighten all the bolts and realign the camber an toe. So far I have 30,000 plus on a set of yokohama 255/40zr17 avs tires and the still have tons of tread left. These are light cars and tires should last a lot longer than a heavy car. Also find a good alignment shop that understands how to properly align a porsche suspension.

07-02-2007, 11:31 PM	#5
smokey-burnout Registered User Join Date: Nov 2006 Location: ca Posts: 3	rear alignment issue My 99 boxster also wouldnt align properly even with the toe adjusters all the way in it was still toed in. I had to give it a lot of neg. camber to get the toe to zero out. The tire wear problem started a about 22,000 mi. after the dealer replace the Rear main seal. I talked to a buddy of mine who is a porsche tech, I asked him what would happen if the car was set down on its weight, off the lift , while the trans and the cross members were out. He confirmed what i suspected that the tolerances in the bolt holes and the cars suspension not being tied together ,would splay the control arms out. And it would not bolt up in the same position it was before . My car also has the sports suspension which compounds the neg. camber issue even more as the car sits a little lower and ads a bit more camber gain compared to the base suspension .To fix the problem required me to loosen the crossmember bolts and the aluminum struts and pan under the trans, and pull everything together with a cable puller ,the tighten all the bolts and realign the camber an toe. So far I have 30,000 plus on a set of yokohama 255/40zr17 avs tires and the still have tons of tread left. These are light cars and tires should last a lot longer than a heavy car. Also find a good alignment shop that understands how to properly align a porsche suspension.