[Jim Richards]

Yikes, that looks bad. Right now I'm trying to decide between two tires that are rated highly on Tirerack.com.

https://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=ExtremeContact+Sport&partnum=055WR6ECS&vehicleSearch=true&fromCompare1=yes&autoMake=Datsun&autoYear=1975&autoModel=280Z&autoModClar=

or

https://www.tirerack.com/tires/tires.jsp?tireMake=Bridgestone&tireModel=Potenza+S-04+Pole+Position&partnum=055YR6S04PP&vehicleSearch=true&fromCompare1=yes&autoMake=Datsun&autoYear=1975&autoModel=280Z&autoModClar=