10% is 10% , it don't matter if it's in the tires or in the gears. That's why I chose the examples that I did.
There was a time I swapped tall tires on, to hit the hiway and shorties around town. But that was with a lesser powered engine. Eventually I realized the more powerful engine needed taller wider tires. And my tire-swapping days were over.
So then I prepped a second pumpkin with hiway gears,for long trips. But the 1.2 hour swaps each way got to me. Over time I have had up to nine ready-to-go chunks lined up; everything from 2.76s to 5.13s except never had a 3.73 or a 4.56.
Enter the GVOD. And later the 3.09 Commando box.
For those that might want to know; I'm wearing out calculators. Sometimes I got three of them on the go at the same time.