Gear ratio Speedo Help!!!

SRT Handz

I tripped & fell down and cut myself & got blood
Oct 10, 2004
941
23
19
La Mirada, CA
I get my gears installed tommarow so i need to get my speedo adjusted. I went looking in my Diablo Preditor to change it but the only sub section in Axle Ration is Traction controll. HOW DO I CHANGE MY SPEEDO!!!!
 
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