With the change to Hoosier racing tires this spring, we have identified a problem that we would like to bring to the attention of our Sport Truck teams immediately. During practice, it was determined that GM chassis trucks are prone to have an issue with the right front tire rubbing the outer tie rod. At this time, it seems to have only affected the GM trucks. We have developed the following options to combat this issue. Unless other chassis are found to have a problem these options will be given to GM owners only.
1) Spindles: Some trucks have moved the steering arm on the spindle to give a clearance of no less than one-half (1/2″) an inch between the tie rod and tire. Please note that this modification should only be done by someone who specializes in this type of work.
2) Spacer plates: These may be used, with a maximum width not to exceed 3/8″ (three-eighths of an inch). The plates may be aluminum or steel and must be used on both front wheels. Rear wheels may have spacers if desired and must be the same size on both wheels. Five-eighth (5/8) studs are mandatory if spacers are used, and must be long enough to accept the spacers.
Sport Truck teams with additional questions or requiring clarification of this rule may contact Race Director David Alburn at the speedway or via e-mail at firstname.lastname@example.org.
Sources: Todd Baptista/Seekonk Speedway PR