0001104659-05-053819 10-Q 5 20050930 20051109 20051109 RUSH ENTERPRISES INC \TX\ 0001012019 5500 741733016 TX 1231 10-Q 34 000-20797 051188201 555 IH 35 SOUTH NEW BRAUNFELS TX 78130 8306265200 555 IH 35 SOUTH NEW BRAUNFELS TX 78130 10-Q 1 a05-18338_110q.htm QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) EX-31.1 2 a05-18338_1ex31d1.htm 302 CERTIFICATION EX-31.2 3 a05-18338_1ex31d2.htm 302 CERTIFICATION EX-32.1 4 a05-18338_1ex32d1.htm 906 CERTIFICATION EX-32.2 5 a05-18338_1ex32d2.htm 906 CERTIFICATION