Do you have any pics? We would really like to see your wheels. ThanksNot to worry, i am running the 17x9.5 torque thrust II's with 5.5 b.s. on my 71 chevelle with stock suspension and no problems . Also same tire size 275/40/17. I have the 17x11(6.25 bs) with 315/35/17 tires on the rear with no problems. Only had a chance to drive my chevelle 3 times since i put the new wheels on due to this lovely weather in indiana. You should be good to go.
HH