i have an '02 v8. i didnt take a measurement from where the bushing sits, but in the middle of the bar, and the outside edges i got...
Front = 1.250" or 31.75mm. Chrome bumper trim, no SST
there is a whole thread on this called "sport?" or something like that. some cars had every option such as chrome and wood shifter/wheel and all the sport optionts too (SST, sport shocks and sport bars), but they were technically not sports i guess.
So that makes what I read in another thread wrong. That the non-sport is 4.75mm bigger. WTF I guess I will have to measure later.