Sad Story On a Gear Vendors OD

roccodart440 said
The difference between .78 and .73 OD ratios is 200RPM at any given speed. (or 5mph)

That isn't a huge difference unless you are running some really severe gear.... Now I run 28's with 4.56's and 60mph is 2500RPm.

I agree with that. I was simply stating what I've seen people say about it right on this forum. That said, the GM transmission swaps would net OD ratios down in the high 60s. That's pretty impressive.