I know many of you have talked about this, but I couldn't find what i needed when i searched back, so...

I went from a 30.7" (255/70R16) with 3.55
to
34.7" (315/75R16) with 4.56

I need to know what speedo gear to put in the tranny to fix the speed.

Wont a Fewer-toothed gear slow it down also?

Thanks, i need to order this soon!