[DZL JIM]

I have had a few customers ask if my tunes are set for their specific gear ratio, either 3:55 or 4:10.
I see axle ratio for all of my tunes are set to 64:1.

Is this something that should be altered per each truck?

What does 64:1 mean?

Also tire size seems to be constant, too at 65535 rev/mile. Same deal, leave it alone?

Thanks.