WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
Use illustration for wheel alignment specifications. See Fig 1 and Fig 2
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Fig 1: Front & Rear Wheel Alignment Specifications (GS 300 & GS 430 - 1 of 2)