1969 Buick GS 400 for sale. SUPER CLEAN exterior! Front spoiler. Motor has been rebuilt its SUPER FAST!!!!! 400 transmission with positive rear end. Brand New 20 inch ASANTI rims. 20 x 10 in the rear and 20 x 9 in the front. New dual exhaust. Tilt wheel with three spoke sport wheel. Car runs great! Needs seat covers for front and rear seats, plus carpeting.