I owned and raced a 1993 Cobra "R" for a few years and the OEM tie rod ends on these cars were not the normal Mustang ones. If fact you can find then on most any Taurus of similar year production.
I know this because my Mom's 1995 Taurus has the same tie rod end as my "R". They were used by Ford SVT to "improve the bump steer" as the car was lower then a normal Mustang or Cobra.