3.55 from 8.25

I don’t know about that. Hiway gears are becoming more popular every day with interstate speeds regularly hitting the 80+ mph mark .

And a well set up open differential will hook both tires for a fair amount of time .
Theoretically, you're right. I just think it's a lot less likely that somebody that has 3.55s will want 2.92, than a guy with 2.92 will want 3.55s.