my steering wheel shaked at 65+ then i rotated the front tires to the rear and it no longer shakes but i ended up buying some new used tires today that im gonna get mounted and balanced,
Lucky u can rotate urs!!! Off sets are different from front and rears
http://www.grandprixforums.net/my-06-gp-gxp-72403.html OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>