This past race weekend, my 240Z developed a new problem. A few laps into the session, after a high speed lefthander (~100mph) almost 180 degree turn, the steering would not return to center on the straight after the turn. Was maybe 15 degrees off left. It also felt like the toe had changed in the following turns as the car was not handling like normal. The tire wear observed after session would also seem to indicate the toe was changing.

Has anyone run into this before with a Zcar? I did a visual inspection and checked for loose bolts (nothing obvious) and tried to shake all the tie rods, ball joint, TC rod, rack mounting, everything I could think of and did not find an obvious issue. I guess I will just need to basically rebuild the whole front end including the rack.

Thanks,
jeff