One inch.
God Bless America, ßill O|||||||O
http://www.billhughes.com/

jeff wrote:
>
> A 4.10 gear set has 41 teeth on the ring and 10 teeth on the pinion, and
> a 4.11 has 37 and 9. Roughly a 1/4"/rev rolling distance difference with
> 33s. Close enough.
>
> --
> jeff